De­a­­ling with the co­ro­­na­vi­­rus

Up­date 06.08.2021

On 28 July 2021, the "Dienstanweisung zum Umgang mit dem Corona-Virus im Geschäftsbereich des Hessischen Ministeriums für Wissenschaft und Kunst" was published. According to this, with effect from 01.09.2021, compulsory presence in the universities is prescribed as a principle. However, in addition to this principle, the current service directive also allows for university-specific regulations. In this respect, the "mobile work" regulation agreement continues to apply at the University of Kassel for administrative-technical staff. According to this, work in presence should amount to at least 60 per cent of the weekly working time (e.g. in the case of full-time at least three out of five working days). This regulation is currently valid until 30.09.2021. An extension until 30.06.2022 and the development of a new service agreement on working time regulations is planned. The previous regulation for academic staff (cf. FAQ 5.5) continues to apply unchanged.

Since the so-called federal emergency brake has no longer been in effect since 01.07.2021 and more presence work is planned again, the regulatory agreement on mobile work will already apply at the University of Kassel from August 2021.

1. Spe­cial hy­gie­ne and pro­tec­tive mea­su­res

Offering the use of antigen self-tests is another component of our infection control efforts. In the face of more infectious viral mutants, we want to continue to minimize the risk of infection transmission. Antigen self-testing does not require trained personnel and can be done by anyone.

Just as in the past two semesters, only those courses may take place in presence where digital teaching is impossible, which rely on special teaching spaces (laboratory, workshop, studio), or where there are other - narrowly defined - necessities. These include practical physical education, laboratory practicals, music teaching, and studio work. Such events must be approved by the dean's offices/rector's office.


1. The hygiene concept remains important

We would like to assure you that the hygiene concept of the university with the distance and hygiene rules, low occupancy of well-ventilated lecture halls, seminar rooms and workplaces, as well as the mask requirement, has basically proven to be very effective. The infection figures among employees and students related to the university are very low and there have been no infection clusters. However, this also shows how important consistent adherence to the distance and hygiene rules in conjunction with the mask obligation is and remains.

Antigen self-tests are another protective measure, but also do not provide one hundred percent protection. The distance and hygiene rules (AHA+L) must therefore continue to be adhered to in a disciplined manner even if the test result is negative.


2. Field of application of antigen self-tests

Students:

Students are given self-tests for the above-mentioned indispensable face-to-face lectures and oral examinations. As far as possible, face-to-face courses should be held as block courses in order to minimize the risk of infection as well as the number of necessary tests.

Self-testing will not be used for examinations where distnace and hygiene rules can be safely maintained (e.g., lecture hall and seminar room with good ventilation).

Employees:

Employees are given self-tests whenever work cannot be done remote. The application is particularly necessary for activities in presence, where a closer and longer contact with other persons in closed rooms is unavoidable. This applies, for example, to manual work, activities with frequent contact with people, laboratory activities, etc.


3. Use of the antigen self-tests

The use of the tests is voluntary. However, their use is strongly recommended for the protection of others. Compared to rapid antigen tests, antigen self-tests are much easier to perform and can be performed by laypersons without prior medical knowledge. The sample is taken with a swab in the front area of the nostrils. The test is performed independently according to the manufacturer's instructions for use (see below). This is self-explanatory and allows independent use.

Students receive self-tests procured by the university as part of classroom teaching.

Teachers are advised to familiarize themselves with the instructions for use beforehand and to try them out for themselves. If necessary, teachers can be instructed by the "Arbeitssicherheit und Umweltschutz" Group.

Admission to individual events only with negative proof (Update 18.06.2021)
The Corona virus negative proof for individual classroom teaching events is based on an event-specific risk assessment (Corona hygiene concept). In principle, the distance and hygiene rules, including ventilation measures and the wearing of medical masks, must be observed at all events. However, due to the nature of the face-to-face teaching event, there may be reasons why it is necessary to deviate from these basic hygiene measures, e.g. in practical sports teaching for team sports or in musical training for choir singing and orchestra rehearsals. An obligatory corona virus negative test may therefore be necessary as a compensatory measure to ensure protection against infection. The decision as to whether negative proof is required as a prerequisite for admission to individual events lies solely with the university administration.


4. Provision with antigen self-tests

Students:

For students, the antigen self-tests are handed out in connection with the above-mentioned attendance events via the lecturers. Please protect yourself and others and take advantage of the offer.

Deans' offices, rectorate and lecturers:

The above-mentioned face-to-face events must be approved in advance by the Dean's Office/Rector's Office, based on a strict examination of the necessity of face-to-face teaching. Faculty must register their need for approved courses by submitting a request form to arbeitssicherheit[at]uni-kassel[dot]de. A request form can be found below.

The number of test kits sent is based on the number of participants and frequency of the event. For approved events, self-tests will be sent via interoffice mail.

Employees:

For employees, the distribution of self-tests (similar to the distribution of FFP2 masks) is done through the dean's offices or facility and department heads. The deaneries/rector's office will receive quotas of antigen self-tests and will handle further distribution.


5. Testing cycles

Students:

For one-day or multi-day face-to-face teaching events, participating students, faculty, and supervisors will be tested immediately prior to the start of the event. For events lasting a work week, testing will occur at the beginning and a second time within the current week. A lead time of approximately 20-30 minutes prior to the start of the events should be allowed for testing.

Due to the limited availability of tests, students are asked to inform their instructors if you have already been tested at a previous event, if applicable.

Employees:

For employees who come to the office or workplace at least once per calendar week, one self-test per week is scheduled. For employees who work permanently in presence or who have frequent contacts due to their job, two self-tests per week are planned. In the latter case, the tests are to be performed at the beginning and a second time within the current working week.

 

Corona Test Box

We will provide a Corona test box for conducting antigen self-tests during face-to-face teaching sessions upon request. The box contains all materials for performing the self-tests:

1. instructions for conducting self-tests at face-to-face teaching events.

2. garbage bag with drawstring

3. disposable gloves for the caregivers

4. skin disinfectant

5. surface disinfectant

6. paper towels

7. FFP2 masks for positively tested persons

8. instruction sheet for safe handling of disposable gloves

9. operating instructions for carrying out surface disinfection

10. copy template "self-disclosure - participation in antigen self-testing

If required, please contact the "Arbeitssicherheit und Umweltschutz" Group: arbeitssicherheit[at]uni-kassel[dot]de.

 

6. Procedure in case of positive test result

A positive antigen self-test obligates affected persons according to the Corona Quarantine Ordinance of the State of Hesse to immediately segregate themselves and have a PCR test (Professional Molecular Biological Testing) performed.

Positively tested persons are given an FFP2 mask and go directly to the domestic segregation. From there, they contact their primary care physician or one of Corona's testing centers by phone to have a PCR test performed. If the positive test result is confirmed in this test, the testing laboratory informs the relevant public health department. Individuals are thus registered and followed up in the public health care system.

Positive test results are to be reported to the "Arbeitssicherheit und Umweltschutz" Group (arbeitssicherheit[at]uni-kassel[dot]de) for coordination of further action (applies to students and employees).

Positive tests of employees are additionally to be reported to the Human Resources and Organization Department at personalfragen[at]uni-kassel[dot]de. In this context, close contacts from the professional/student environment must also be notified (<1.5 m, close field, longer than 10 minutes).

Positively tested persons are not allowed to enter the campus and the rooms of the University of Kassel until a negative PCR test has been submitted or a quarantine period of 14 days has been completed.


7. Instructions for the disposal of used test kits

After performing the tests, all test kit components are to be collected in a garbage bag and the bag is to be closed tightly with the drawstring. The waste bag is to be disposed of in a suitably sized residual waste container with the household waste. Waste separation in this case (plastic) is not indicated.

 

Unterlagen zum Download (in German):

 

Weiterführende Informationen (Further Information, in German):

General obligation to wear medical masks

According to the current Corona Ordinance of the State of Hesse, there is a general obligation to wear medical masks (surgical masks or protective masks of the standards FFP2, KN95, N95 or comparable without an exhalation valve) on circulation areas in the buildings of the University of Kassel and in the meeting and conference rooms until you take your seat. Circulation areas in buildings are areas that provide access to rooms or buildings, such as corridors, entrance areas, stairs and lifts. The simultaneous use of lifts is to be limited to a maximum of two persons wearing  medical masks.

This applies to teaching (teachers and students):

  • Internships and other face-to-face events with outside contacts.
  • Courses such als lectures, seminars and the like, oral and written examinations in presence, also at the seat, for the traffic routes, when entering and leaving the classroom, when moving between seats.
  • In areas and rooms intended to be used by students outside of classes for purposes of study, and for food and supply facilities.
  • When using the university library.

Furthermore, the obligation to wear protective clothing always applies if the distance requirement of 1.5 metres cannot be observed. This applies to all areas and activities at the university, in buildings, outdoors and in vehicles.

Note: Wearing simple fabric masks (MNB) is no longer sufficient!

The medical masks are provided to students free of charge in connection with the attendance events and examinations via the lecturers.


Particle filtering masks (FFP2 masks)

In addition, the university provides FFP2 masks free of charge. FFP2 masks have a higher breathing resistance than OP masks, which means that, in contrast to the OP mask, self-protection is also achieved when they are worn close to the face. The use of FFP2 masks is voluntary for students and should be taken advantage of whenever possible.

For employees, the use of medical masks or FFP2 masks will be based on the outcome of the assessment of working conditions as specified in the SARS-CoV-2 Occupational Health and Safety Regulation dated 27/01/2021. The equipment with FFP2 masks for employees and the instruction in handling is carried out by the respective superiors.


Face shields

The use of face shields without wearing a mouth-nose covering in the buildings of the University of Kassel is only permitted in exceptional cases, upon presentation of a justified medical certificate.


Further information from the specialist institutions

There are various types of masks, some of which differ significantly in their design and protective effect.

Wearing masks is always just one part of a comprehensive protection concept with which we are working together to combat the spread of the coronavirus. Therefore, the "AHA+L" formula still applies: Keep your distance, pay attention to hygiene, wear an everyday mask, and ventilate.

Further information on the use of MNB, MNS and FFP masks is available from the following specialist institutions:


Wearing time of the masks

  • Medical masks (MNS, surgical masks) are disposable products that are normally used in everyday clinical practice, e.g. also during operations or in doctors' surgeries. Mouth-nose protection (MNS) is a disposable product that must be changed regularly. MNS may be worn for a maximum of the duration of a work shift, i.e. also for the duration of a longer practice event or examination. In addition, an MNS must be changed in the event of contamination or moisture penetration.
  • For FFP2 respirators or comparable respirators, a wearing time limit is recommended due to the physical strain; indications for a wearing time limit are described in DGUV regulation 112-190 "Use of respiratory protective devices" with 75 minutes, whereby the work severity influences the maximum wearing time.
  • The offer to use FFP2 masks is voluntary. Instructors will stock both types of masks. If students find during classroom sessions or exams that using an FFP2 mask creates too much breathing resistance, they may switch to a medical mask at any time.

Safety and occupational health advice on the use of MNB, MNS and FFP masks is available from the occupational safety specialists and the occupational health service.

  • Enquiries via: arbeitssicherheit[at]uni-kassel[dot]de

Preventive occupational medicine: Regardless of whether you have taken advantage of preventive occupational medicine in recent years, we would like to draw your attention to the possibility of preventive occupational medicine and offer it to you!

Further information on occupational health screening

Gathering contact data

Contact data must be registered for teaching and examination units and when using student workplaces in areas used for student operations from the start of the 2020/21 winter semester onwards.

Participation in gathering contact data is mandatory and a prerequisite for participation in attended units of instruction and when using other facilities.


Gathering contact data with the web application darfichrein.de

The contact data is recorded quickly and easily via a smartphone and a QR code with the darfichrein.de web-based application. You will find the necessary QR codes at the entrances and exits of the lecture halls and seminar rooms.

  • Initial registration: You do not need to download an app. You only have to scan the QR code and enter your contact information (name, address and phone number) once on the darfichrein.de website linked to it.
  • Further registration: For all further units of instruction, you only have to scan the QR code at the entrance and register with the four-digit PIN number that you selected during initial registration (please do not forget it!).
  • Logging out: After the end of the unit, simply click on the "Check-Out" button on the smartphone display. If it is no longer displayed, simply scan the barcode next to the exit door again.

Contact data must be gathered for each individual unit of instruction. The stored registration data cannot be seen by the lecturers!

The data is stored in encrypted form at the data centre of the Anstalt für Kommunale Datenverarbeitung in Bayern (AKDB). The AKDB is certified by the Federal Office for Information Security. The data is automatically deleted after 28 days and is only used if somebody suffers from the coronavirus so that the public health department can follow up contacts.

In order to avoid delays when attending your first unit of instruction, it is possible to store your contact data on your device in advance for use with darfichrein.de. Instructions can be found here:

https://www.uni-kassel.de/go/darfichrein-registrierung


Gathering contact data with a paper form

Students: For students who do not have a smartphone or who have forgotten it, it is also possible to register on a paper form. There are forms for this purpose in all lecture halls and seminar rooms.

Lecturers: The forms provided in the lecture halls and seminar rooms must be handed to students who could not register via a smartphone. At the end of the unit, the forms must be collected in DIN A5 envelopes, which are also available in the room, kept for four weeks and then destroyed in accordance with data protection regulations.

To reduce the risk of infection, general hygiene measures according to the above-mentioned AHA formula in German must be followed: Keep your distance, respect hygiene, wear a face mask.

Particular emphasis is placed on regular and thorough hand washing with soap and water for 20 seconds before and after the course.

In addition, disinfectant dispensers have also been installed at the building entrances to enable the chain of infection to be interrupted when entering a building, even without using the washing facilities.

Please also observe the rules for service instructions (No. 1.2) and the house rules (No. 1.1).

In the light of the ongoing SARS-CoV-2 pandemic, various professional organisations and scientists have addressed the topic of "ventilation" and developed recommendations on ventilation behaviour. Please find enclosed studies and statements by the Commission for Indoor Air Hygiene at the Federal Environment Agency, the Federal Institute for Occupational Safety and Health (BAuA), the Indoor Climate Section of the German Statutory Accident Insurance Organisation (DGUV) as well as the SARS-CoV-2 Occupational Safety and Health Regulation of the Federal Ministry of Labour and Social Affairs and we summarise the main findings on free ventilation, ventilation systems in rooms and mobile air circulation units.

In order to prevent infection, the air in rooms should be replaced as often as possible to increase the amount of fresh air. This is one of the most effective methods of removing potentially viral aerosols from indoor spaces.


Free ventilation

The simplest form of ventilation is window ventilation. Window ventilation must take place before or at the beginning of the unit of instruction and then at regular intervals. Windows should be fully opened to provide a rapid change of air. A ventilation period of 3 to 10 minutes is recommended. Cross-ventilation using opposite windows is even more effective (if possible). 

The time interval for ventilation depends on the size of the room, the number of people, activities (normal speaking or e.g. choir singing) and the available window area. The SARS-CoV-2 occupational safety rule from the Federal Ministry of Labour and Social Affairs recommends ventilation after 60 minutes for offices and after 20 minutes for meeting rooms.

The Commission for Indoor Air Hygiene at the Federal Environment Agency makes a recommendation for schools on ventilation behaviour that applies equally to seminar rooms at universities: "The following applies to room sizes of approx. 60-75 m³ and a number of pupils of usually 20-30 children per class. Here, intensive ventilation is to be provided in every (!) break in class with windows wide open, for teaching units lasting more than 45 minutes, i.e. in double lessons too or, if there is only a short break (5minutes) is provided between teaching units, during the lessons too. (...) If, during the lessons, individual students experience symptoms of illness such as repeated sneezing or coughing with the windows closed, the area should be ventilated immediately (a rapid change of air as described above). This also applies at home or in offices.”

The use of so-called CO2 traffic lights can provide a rough indication for sensitising users to ensure a sufficient change of air and is by no means a measure of the risk of infection. The use of CO2 measuring devices therefore does not replace the ventilation recommendations given above.


Building ventilation systems

Lecture halls and seminar rooms of the University of Kassel, which are equipped with a ventilation system, are currently being operated with a very high outside air volume flow and this will continue during the winter semester. This means that we have been complying with the recommendations of the professional organisations since the beginning of the last summer semester.

In its statement, the department for indoor climate of the German Statutory Accident Insurance Organisation (DGUV) states: "Technical ventilation enables filtered fresh air from outside to be continuously fed into the interior areas via central or local ventilation systems. (...) In contrast to free ventilation, ventilation systems, if correctly adjusted, guarantee a continuous and sufficient exchange of air, regardless of the external weather conditions. The risk of transmission of SARS-CoV-2 via properly maintained ventilation systems is therefore low. For this reason, air treatment systems should not be switched off, but on the contrary, the supply of fresh air via the air treatment system should be increased and recirculation operations should be avoided or reduced as far as possible. Only a sufficient supply of fresh air helps reduce the concentration of virus-contaminated aerosols.”

In rooms with recirculating air coolers, it is important to additionally ventilate extensively through the windows.


Mobile air circulation units

According to the Indoor Air Hygiene Commission (IRK) at the Federal Environment Agency, the most effective method of removing virus-containing aerosols from indoor spaces is to provide as much fresh air as possible. Mobile air filter units that recirculate air do not allow fresh air to enter the rooms. In the opinion of the IRK, the use of these air purifiers with integrated HEPA filters in rooms is not sufficient to effectively remove suspended particles (e.g. viruses) by filtering the indoor air for the entire period of use. Using these devices cannot replace ventilation.

The Indoor Air Hygiene Commission (IRK) also describes which requirements must be checked in advance in order to operate these devices: "This would require an exact recording of the air movement and air flow in the room as well as a specific placing of the mobile devices. The amount of the air flow rate would also have to be adapted exactly to the local conditions and room occupancy. The use of these devices can therefore not replace ventilation measures and should be a supporting measure (...) if necessary (...). Treatment of air pollutants with ozone or UV light is rejected by the IRK for both health and safety reasons.”


The aforementioned documents can be accessed via the following links: 

2. Qua­ran­ti­ne, re­porting ob­li­ga­ti­ons, Corona in­fec­tions, vac­ci­na­ti­on

Applies to private travel and business trips (for more information on business trips, see FAQ No. 5.17).

Employees of the State of Hesse are expected not to travel to countries outside the Federal Republic of Germany if the Federal Government has already classified the destination as a high-risk area or virus variant area at the time of departure, this travel is avoidable and there is no exemption from the quarantine requirement for persons entering the country.

Current information on quarantine regulations for persons entering Germany can be found on the website of the Federal Ministry of Health: Quarantine regulations and coronatests for persons entering Germany

 

 

Employees shall inform the Human Resources and Organisation Department (personalfragen@uni-kassel.de) without being asked in the following cases: 
- proven infection with the SARS-CoV-2 coronavirus,  
- Classification as a close contact person (with increased risk of infection) according to the RKI definition (cf. contact person follow-up for SARS-CoV-2 infections as of 20 May 2021 in the current version),
- Obligation to segregate on the basis of Section 7 of the Coronavirus Protection Ordinance or Section 4 of the Ordinance on Protection against Entry-Related Infection Risks with regard to the SARS-CoV-2 coronavirus following the determination of an epidemic situation of national scope by the German Bundestag (Coronavirus Entry Ordinance - CoronaEinreiseV) of 12 May 2021, as amended,
- Order of isolation by a public health authority. 
The regulations of the Coronavirus Entry Ordinance apply to persons entering Germany from abroad. The exceptions to the obligation to segregate regulated therein must also be observed.
Employees of the State of Hesse are expected not to travel to countries outside the Federal Republic of Germany if the Federal Government has already classified the destination as a risk area or high incidence area or virus variant area at the time of departure, this travel is avoidable and there is no exemption from the segregation obligation for persons entering the country. A journey is avoidable if, at the time of departure, there are no compelling reasons for the journey that cannot be postponed. Travel is likely to be unavoidable only in special and exceptional circumstances (e.g. birth of one's own child or the death of a close relative such as a parent, grandparent or one's own child).
For persons who are demonstrably infected with the SARS-CoV-2 coronavirus and close contacts (with increased risk of infection) according to the RKI definition, the obligation to be present is waived for 14 days, provided that there is not already an obligation to separate on the basis of § 7 of the Coronavirus Protection Ordinance or § 4 of the Coronavirus Entry Ordinance or an official quarantine order. Deviating quarantine periods in the Hessian ordinances, the Coronavirus Entry Ordinance and in quarantine orders of the public health offices shall take precedence.
During this period, employees shall perform their duties/work, if possible, using their mobile office PC or at an existing teleworkstation.

Upon confirmation of infection by a positive test result, the physician will report the result to the Health Department. Individuals with suspected Covid 19 or a confirmed positive coronary test shall stay away from the university/work site.
The Health Department will then contact the individual and, if necessary, the university to identify additional contacts. The following scheme will be used:
Contacts to a confirmed COVID-19 case are defined as close contacts (at increased risk of infection) if at least one of the following situations exists:
1. close contact (<1.5 m, longer than 10 minutes) without adequate protection (see below) (adequate protection = case and contact person consistently and correctly wearing MNS [mouth-nose protection] or FFP2 mask).
2. conversation with confirmed COVID-19 case (face-to-face contact, <1.5 m, regardless of duration of conversation) without adequate protection (adequate protection = case and contact person consistently and correctly wearing MNS [oral-nasal protection] or FFP2 mask).
3. Simultaneous presence of contact person and confirmed COVID-19 case in the same room with likely high concentration of infectious aerosols regardless of distance for > 10 minutes, even if MNS (mouth-nose protection) or FFP2 mask was worn consistently and correctly.
> Advanced protection: when the following conditions are met: (1) MNS as defined by BfArM or FFP2 mask AND (2) if worn continuously and correctly, i.e. tightly fitting and over both mouth and nose.
For possible inquiries on the part of the public health department for contact person tracing, participant lists must therefore always be kept and stored.

For persons who do not belong to the inner circle of contact persons, no officially ordered quarantine measures apply. As an additional and precautionary measure for these contact persons, we refer to the possibility of mobile working. Nevertheless, there are some behavioral instructions that should be observed for 14 days after the occurrence of the case of infection:

  • During this period, please continuously watch for symptoms of illness.
  • If signs of a respiratory infection such as cough, fever, chills, or a loss of taste sensation develop within the 14 days, please call your family doctor's office, ask for a sick note, and then contact the Health Department directly at 0561 787 1968.
  • Wash your hands regularly, adhere to cough and sneeze etiquette, and consistently wear mouth-to-nose coverings where distance is not possible.
  • During these 14 days, please reduce your social contacts with people belonging to risk groups (elderly, immunocompromised and chronically ill people) as much as possible.

 

The University strives to detect suspected Corona cases early so that protective measures can be taken as quickly as possible.
Employees are encouraged to immediately notify Human Resources of a confirmed Corona infection or domestic quarantine order if there was attendance and personal contact at the University during a two-day period prior to the onset of initial symptoms.

Faculty, students, and guests are encouraged to report a confirmed Corona infection or domestic quarantine order to the Occupational Health and Safety and Environmental Protection Group (arbeitssicherheit[at]uni-kassel[dot]de) if there was presence at the University during the relevant time period (two days prior to the onset of initial symptoms or a positive test).

If a confirmed Corona infection occurs and the person was present at the workplace during the two-day period prior to the onset of the first symptoms, the workplace should not be used for a period of at least 36 hours, followed by cleaning of contact surfaces with household cleaning agents. Cleaning of contact surfaces after Corona infections can be requested from the service department for maintenance cleaning (contact: reinigung[at]uni-kassel[dot]de).

In general, the infectivity of corona viruses on inanimate, dry surfaces decreases rapidly at room temperature or higher temperatures. According to current knowledge, there is no risk of infection from shared files and papers if the contamination occurred more than 24 hours ago.

Regardless of regular cleaning of surfaces, regular hand washing (20 sec with soap) and avoiding touching one's own face applies.
Precautionary surface disinfection, even of frequently used contact surfaces, is not considered necessary even in the current COVID-19 pandemic. Cleaning with common detergents is sufficiant.

Update 11.06.2021:

The Hessian Ministry of the Interior offers - albeit limited - vaccine contingents for employees of the Hessian state administration. Around 750 people at the University of Kassel can thus receive a first and second vaccination against Covid-19 via the university's medical service. Initial vaccination appointments will be available on 06/22/2021 from 9:00 am to 1:00 pm and on 06/24/2021 from 9:00 am to 5:00 pm. Approximately 150 - 200 initial vaccination appointments will be made available each week over a period of 4 weeks. Second appointments will be made subsequently. Only the m-RNA vaccine of the manufacturer Biontech/Pfizer will be used.

Please note: The offer is directed at all employees who have not yet received a vaccination appointment elsewhere. Also, individuals who have already received initial vaccination from elsewhere are not eligible. If you receive an appointment through this offer, please do not make any other appointments and take yourself off other waiting lists (such as vaccination centers or family doctors).

To guarantee a fair allocation of this limited offer, lots will be drawn exclusively, with the participation of the Staff Council:

  • Vaccinees will be drawn weekly from among those registered, depending on the amount of vaccine available.
  • The persons selected are informed by e-mail and directed to an appointment booking system with a link.
  • The vaccination appointments take place the following week. Employees can make their selections from the available appointments.
  • Employees randomly selected will be removed from the list, all others will remain in the registration pool. Late registrations will be added to the list. In addition, a back-up list (for last-minute cancellations) is generated each week.

Restrictions

The university‘s medical service advises that persons with the following pre-existing conditions or medications are not suitable for this procedure and should instead consult their family doctor or specialist, who may also be aware of their medical history:

  • history of thrombosis or embolism
  • if you are taking blood thinners
  • known allergic reactions to vaccinations
  • when taking immunosuppressants or immunomodulators.

Vaccination location and time

The vaccination will take place in the vaccination center of the city of Kassel in the large sports hall on Damaschkestraße. Please bring the registration certificate as well as the completely filled out documents (will be sent with the appointment registration) to the vaccination appointment.

Your application for pre-registration

If you meet the above conditions and would like to take advantage of this vaccination opportunity, you can pre-register for vaccination. You will receive the link to register by e-mail. 

 


Update 4.5.2021
Employees of the University of Kassel are assigned to vaccination priority group 3 and can register for a vaccination appointment immediately. This applies to all university employees, including academic and student assistants and lecturers. Vaccination entitlement certificates will be issued by the Department of Personnel and Organisation and sent by post to the private address without being requested during the week of 3 May - 7 May.

Make vaccination appointment

It is now possible to register online for a vaccination appointment without this certificate. Registration for a vaccination appointment is possible online as well as by telephone: https://impfterminservice.hessen.de. When registering online, please tick the affiliation to Priority Group 3 (with increased priority) and the selection field "Persons of Critical Infrastructure" when affiliation to the eligibility check. 

Employees residing outside of Hesse

For employees of the University who live outside Hesse, we recommend registering by telephone, which according to our information is also possible in these cases: 0611 505 92 888 (Daily from 08:00 - 20:00 - also on Sundays and public holidays). 

Working hours

If the vaccination appointment falls during working hours, any absences resulting from this may be credited to working hours.

 

3. Stu­dy and teaching

Courses for the coming winter semester start on 2 November 2020. 
The period without any units of instruction begins on 19 December 2020 and ends on 3 January 2021.
The units of instruction end on 19 February 2021.

 

  • In addition to the previous face-to-face courses of the summer semester (laboratory, workshop, atelier), a few selected presence offers with a well-founded didactic necessity may take place. These include courses for the first phase of studies or shortly before graduation and events with a special need for intensive interaction. These courses must be reviewed, prioritized and approved by the dean's office/rector's office.
  • Priority of digital teaching: In principle, however, all teaching should continue to be offered digitally. This ensures that all students can continue their studies even if they are not or cannot be on campus for individual reasons.
  • You will be informed by your instructors if there are still changes for your courses in the summer semester. Please watch for notifications in your mails or on your learning platforms.
  • Please keep in mind that on-campus contacts are still to be limited to what is necessary and follow the distance and hygiene measures. There continues to be a general requirement to wear medical masks in the buildings as well as meeting, conference and instructional spaces.
  • Buildings on campus will remain closed. Instructors will arrange for pick-up at the entrances for their event, if necessary.
  • Face-to-face exams will still take place in coordination with instructors. For the upcoming exam phase, we assume that if the incidence rates remain stable or decrease, these exams can again be held in presence. This is true unless other formats are chosen that do not require attendance, as in previous semesters.
  • Antigen self-tests will continue to be provided for face-to-face courses such as practical physical education, laboratory practicals, music education, and studio work. These will be provided in conjunction with the face-to-face courses via the instructors. Corona tests will continue not to be used for examinations, as spacing and hygiene rules can be adhered to here and the potential unreliability of the test result will not unjustifiably exclude students from taking an exam.
  • All University Library locations are open on a limited basis. The extension of the opening hours is currently being examined and prepared. Please check https://www.uni-kassel.de/ub/ for daily updates.
  • The LEO Learning Center is open Monday through Friday from 10 a.m. - 6 p.m. and is preparing more usable study spaces. For the number of workstations available at any given time and more information, please visit www.uni-kassel.de/go/leo.

Day excursions with a manageable number of participants are approvable, a Corona virus negative proof is strongly recommended. If possible, participants should travel individually or by public transport. 
For a journey with (small) buses, the department must carefully check whether the distance regulations and common hygiene measures (AHA rules) can be observed. A corona virus negative certificate is strongly recommended as a prerequisite for entry. A hygiene concept reviewed by the department must be included with the field trip application. 
Furthermore, multi-day field trips that would require one or more overnight stays are not approvable.

Oral examinations are – provided that hygiene concepts are used - basically possible.

During the 2020/21winter semester, the examining boards of the departments may permit special forms of examination, such as video conferences. If they are used, guarantees must be provided, among other things, that all those involved agree to this form of examination, the identity of the candidate can be established by means of an identification card, he or she is alone in the room and no inadmissible aids are being used.

If examiners or students belong to a risk group or cannot be present due to supervision tasks or for other important reasons, it is possible (if approved by the responsible examination board) to conduct the oral examination as a video conference. Guarantees must be provided that all parties involved agree to this form of examination, the video conference is managed by the examiner(s) and conducted using a secure service, the identity of the examinee can be established by video image and the presentation of an official identification document, he/she is alone in the room and no unauthorised aids are being used, - and an examination protocol is drawn up in the usual manner. The explanation of the examination evaluation to the examinee will be given orally during the video conference. If the candidate fails, he/she must confirm orally that the evaluation has been explained to him/her. If the examination has to be cancelled for technical reasons, the examination will be deemed not to have been taken. This is determined by the examiner or the chairman of the examining board. If this procedure is not desired, the examination may have to be postponed to a later date.

The possibilities for conducting electronic supervisory audits are explained in the “Handling for the conduct of electronic remote tests (online exams) of 4 February 2021”. As a document you can find the sample of data protection information here: PDF-Datei / Word-Datei

Entrance, stay, exit in the e-assessment centre

  • Observe the hygiene regulations: wash your hands frequently, sneeze or cough in the crook of your arm, etc. After each examination, we disinfect table surfaces, input devices and screens.
  • Wear a face mask. Put on your face mask before entering the e-assessment centre. You can use a face mask in the same way as for shopping.
  • The lockers are not available. For this reason, do not bring any luggage. Only a small bag or daypack is allowed’ it must be placed on the outside walls or behind the examination places in the examination room. Switch off your cell phone or smartwatch immediately and stow it in your bag, this will save time. You are allowed to bring one drink. Make sure to use a sealable container (e.g. a bottle with a screw cap). You can then place the drink on the floor next to you.
  • There will be individual admission to the e-assessment centre. Only enter the e-assessment centre individually and when prompted. Please also observe the rules governing the distance to your fellow students and employees. If there are queues in the entrance area and in front of the building, maintain a distance of 1.5 - 2 meters, observe the markings on the floor.
  • In the e-assessment centre, take a paper label with your last name, first name and password at the counter. You will need the password later to register in the examination system. If your label is not available, although you have registered for the exam, please contact the exam supervisor.
  • Then go to the examination room. Every other place will be occupied in the examination room. You will be assigned a free place. Wait until you are requested to log on at the computer.
  • Put your certificate of enrolment or your student ID and your photo ID on your desk. These documents are required for the identity check during the exam.
  • A representative of your faculty will give an introduction to the content of your exam. You will then receive a short introduction to the use of the e-examination system by the staff from the Teaching Service Centre. You can then register and start your exam.
  • Remain seated even after having uploaded your exam. This also applies if you have completed your exam before the time limit expires.
  • People will be dismissed individually from the e-assessment centre. Do not leave the e-assessment centre until you are individually prompted to do so. You will always leave the e-assessment centre individually and be at least 1.5 metres away from the person in front of you. The exit is via a separate door.
  • The examination only starts when everyone is safely seated in their seat. You will not be put at a disadvantage by any queues that may form.

Logging in and writing the exam

You should only look into the examination system after you have been requested to do so. You will need your enrolment number and the password, which you will find on your label. You can now start the exam. Please note the following information:

  • It is possible that your lecturer has set a time limit for your exam, after which your exam will be sent off automatically. If an exam has a time limit, you will be informed about this at the beginning of the exam. You can check the remaining time on your exam computer at any time, as it is displayed on the screen.
  • You can change, complete or correct your answers at any time during the exam. Please note! There are e-exams that consist of several blocks. In these exams you can only change answers within one block. As soon as the task block is completed, you cannot change the answers that you have entered. If an exam consists of several completed blocks, this will be indicated at the beginning. The screen also shows which block you are currently in.
  • As with a paper exam, once you have handed in your exam, you cannot call it back. If you click on "Submit exam" in the exam system and have not yet answered all questions, a security question will appear which you must confirm first. If you confirm it with "yes", the exam will be sent and cannot be recalled.

Once you have handed in your exam, please log out of the system.

Examination results and post-examination review

Your lecturer will tell you whether you have passed and with what grade. Depending on the structure of the exam and the type of tasks used, this can take between a few days and a few weeks.

Your lecturer will also inform you about when and where you can view your exam.

Getting to know the e-examination environment

Here you have the opportunity to get to know the e-examination environment better and write a sample test.

Go to the following page: uni-kassel.de/go/self-assessment

Name: Guest
Password: Guest

Here you have the opportunity to watch a video about the e-assessment centre.

In addition to the university's own free attempt regulations (see below), the Ministry has determined that examinations, including final papers and supplementary oral examinations, that have been assessed as definitively failed may be repeated once again in the summer semester 2020, the winter semester 2020/21 and the summer semester 2021. This does not apply to cheating.

This means in detail:
In the winter semester 2020/21 (and retroactively for the summer semester 2020), the state-wide regulation has extended the current comprehensive free attempt regulation of the University of Kassel, which was introduced for the summer semester 2020 and the winter semester 2020/21, in a few areas (final theses including doctorates, oral supplementary examinations, artistic courses). However, this regulation on the part of the state only covers the repetition of failed final attempts for the types of examinations mentioned and not the possibility of improving grades. The relevant restrictions of the university-side regulations will thus no longer be applied for the summer semester 2020 and the winter semester 2020/21. Questions can be directed to the examination offices and examination boards. 

Regarding the university regulations:
For the degree programmes leading to Bachelor's and Master's degrees as well as for the teacher training programmes, the Senate passed a free attempt rule on 8 July 2020, which was extended by resolution of 13 January 2021 for the winter semester 2020/21 and by resolution of 5 May for the summer semester 2021 (for examinations up to 31 October 2021). Examinations not passed in the semesters in question are deemed not to have been taken. Examinations passed in these semesters (with the exception of theses and examinations in artistic degree programmes) may be repeated once to improve grades. In the case of repetition, the better result counts. Examinations that were not passed due to deception or administrative offences do not fall under this regulation. Any additional regulations provided for in the subject examination regulations remain unaffected. 


Examination registration to improve the grade of an examination passed in the summer semester 2020 must take place by 30.09.2021 at the latest, after which this option expires. For the winter semester 2020/21, the corresponding deadline ends on 31.03.2022, for the summer semester 2021, this deadline ends on 30.09.2022. For examinations repeated in the future according to these regulations, there is generally no entitlement to retain the chosen examination format. 

The following explanations and notes seem important in this regard:
The starting point of the regulation is the time of the examination. It therefore also applies to examinations of the winter semester 2019/20 that have been postponed to the above-mentioned period; the relevant period for failed examinations as well as for repeated examinations to improve grades is the period of the summer semester from 1 April 2020 to 31 October 2020 as well as the winter semester 2020/21 until the end of April 2021; for the summer semester 2021, the relevant period applies until the end of October 2021. Examinations not taken ("non-attendance") are treated as failed examinations. Theses' in the sense of the regulations are the Bachelor's and Master's theses as well as the scientific paper in the state examinations. In the state examination degree programmes, the term 'thesis' is used.

The examination administrations of the degree programmes in the departments can be contacted.

 

In the light of the fact that the summer semester in 2020 has not been taken into consideration in terms of the maximum period for BAFöG support (student loans), the State of Hesse has issued a ruling that “differs from the normal period of study laid down in the examination regulations according to Section 19 of the Hesse Higher Education Act […] and sets an individual normal study period that has been increased by one semester for students who have been enrolled for university courses during the summer semester of 2020 or are pursuing a course that is concluded by a state or church examination.” (Order to Handle the Effects of the SARSCoV2 Pandemic in the Higher Education Sector, dated 1 July 2020 and published in the Law and Ordinance Gazette on 14 July 2020, p. 499).

This rule also applies to students at the University of Kassel on leave of absence in the 2020 summer semester,  2020/21 winter semester and students on leave of absence in the summer semester 2021. It is now part of the certificate of study history, which students can access via the self-service function at the eCampus. This rule does not apply to questions of university statistics and university funding. The Student Services Organisation is responsible for issues related to BAFöG: (cf. www.studierendenwerk-kassel.de/info-covid19/)

Comprehensive information about Bafög and student funding is available at the website of the Student Services Organisation: www.studierendenwerk-kassel.de/info-covid19/

 

  • Time spent abroad is generally possible. In view of the pandemic, the situation is very dynamic and can lead to changes at short notice. It is therefore strongly recommended that, before beginning any time abroad, you should find out about the entry and residence conditions of the respective host country as well as the requirements and general conditions of the host institution.
  • Employees should also inform themselves about the university's guidelines on business trips.
  • In addition, we recommend that you regularly visit the websites of the German Foreign Ministry and the host institution for further information.
  • Students who have to complete mandatory time abroad, please contact the respective examining board.
  • It is possible to postpone your time in most cases. You must check whether an approved scholarship has to be repaid in case of early termination or non-appearance in each individual case or this will depend on the standards set by the respective scholarship provider.
  • If you have successfully applied for an exchange place, you can use the online services of the host university. In many cases, it is also possible to combine classroom and online teaching and obtain financial support.
  • If you have any questions, the team at the International Office will be happy to assist you.

4. Mee­tings, con­fe­ren­ces and non-cur­ri­cu­lar events

Events such as conferences, lecture events and educational programmes for up to 50 people can be held in principle, provided that the distance and hygiene rules and the obligation to wear medical masks are observed, contact details are recorded and suitably sized rooms are available. Please note: only around 20% of the original seating capacity is available in university rooms.
Events with more than 50 people must be pre-approved.
Due to the limited room capacity - only about 20% of the original seating capacity is available - it may not always be possible to hold the event at the university. Alternatively, the organiser can use external rooms/rentals. Enquiries about internal room bookings should be made through the room administration (contact: schick-weigert@uni-kassel.de or cedric.weber@uni-kassel.de).
A "Checklist for Events (Risk Assessment Corona / www.uni-kassel.de/intern/index.php" and personal advice on the preparation of a hygiene concept are available. For questions regarding the creation of a hygiene concept, you can consult with the Occupational Safety and Environmental Protection Group (arbeitssicherheit@uni-kassel.de). The organiser is responsible for the preparation of and compliance with the hygiene concept / risk assessment. The measures to reduce the risk of infection and to record contact data must be observed.
The implementation of written examinations and the implementation of curricular face-to-face teaching events have priority in the use of rooms.
The further course of infection is not foreseeable; if necessary, local or regional lockdown measures are to be expected. In order to avoid possible costs that would be associated with a cancellation at short notice, alternative planning with digital formats is advisable and this should be taken into account in any commitments made for room rentals or catering.

 

Senate meetings are conducted via video conference and are open to the university public. Dial-in details can be obtained from Ms. Honig (email: yvonne.honig@uni-kassel.de).

 

5. Re­gu­la­ti­ons for em­ployees

The HMWK instruction dated 31.08.2021 replaces the previous instructions dated 28.10.2020, 12.02.2021 and 28.07.2021.

Dealing with the Corona virus in the area of responsibility of the Hessian Ministry of Science and the Arts (31.08.2021)

The regulatory agreement "Mobile Work" was extended and is initially valid until 30.06.2022. Further information at: www.uni-kassel.de/go/mobile-arbeit

A waiver of the obligation to be present due to an increased individual risk for a severe course of the disease is possible on the basis of a medical certificate. The medical certificate must contain confirmation that in the event of an infection with the corona virus SARS CoV-2 according to the criteria of the Robert Koch Institute (cf. also https://www.rki.de/DE/Content/InfAZ/N/Neuartiges_Coronavirus/Risikogruppen.html) there is a risk of a severe course of illness due to the special disposition. The costs for the medical certificate must be borne by the employees themselves. In unclear cases, the head of the department can initiate an occupational health examination.

If mobile work is not possible, work in presence is to be organised in compliance with hygiene and safety standards (maintaining a distance of at least 1.5 m, if necessary working during off-peak hours, if necessary assigning another activity). If neither mobile work nor presence work is possible, extra hours on the flexitime account as well as overtime and extra hours are to be used.

If all of the above options have been exhausted or are not possible after consultation with superiors, paid time off or time off from work may be considered. In such cases, please contact the Human Resources and Organisation Department personalfragen[at]uni-kassel[dot]de. If a leave of absence has already been granted without an occupational health examination, this must be carried out promptly. This also applies if such leave is granted due to imminent danger. Recreational leave, special leave and time credits from the lifetime working time account do not have to be applied for or taken.

As a rule, partial or complete exemption from compulsory service, with continued payment of remuneration, due to childcare is not an option.
If the crèche, kindergarten or school is closed due to infection control measures, employees with children under 12 years of age may be allowed to work mobile in case of home care. Agreements already made remain valid.
In cases of exceptional hardship, leave from work or duty may be granted with continued payment for periods outside school holidays or closing times if

  • the community childcare facility or school is actually partially or completely closed or in limited regular operation
  • the children have not yet reached the age of 12 or are dependent on assistance due to physical, mental or emotional handicap
  • mobile work is not possible
  • credit hours on the flexitime account, overtime and extra hours as well as annual leave have been used
  • alternative care options (e.g. emergency child care, another parent, family care community) are not available even on an hourly basis

If employees have to care for relatives in need of care (with a care degree according to SGB XI) because the care facility is temporarily closed due to the Corona pandemic or the care service is cancelled or foreign care workers cannot enter the country, or if they have to accompany a close person in a hospice or hospital during the dying process, employees with custody rights affected by this can be granted partial or complete fulfilment of the tasks in mobile work at their reasonable discretion. 
If all of the aforementioned options have been exhausted or are not possible after consultation with superiors, please contact personalfragen[at]uni-kassel[dot]de to review the individual case.

 

For administrative-technical staff, the "mobile work" regulation agreement continues to apply. According to this, the work in presence shall amount to at least 60 per cent of the weekly working time (e.g. in the case of full-time at least three out of five working days; in the case of part-time employees with a 4-day week this can be done with a 3-day presence phase and a 1-day phase of mobile work in weekly alternation with a 2-day presence phase and a 2-day phase of mobile work). This regulation is currently valid until 30.06.2022. 
The previous regulation for academic staff (cf. FAQ 5.5) continues to apply unchanged.

Further information can be found here: www.uni-kassel.de/go/mobile-arbeit

For research assistants, the individual home office agreements made with superiors before the corona pandemic can be used, provided that the tasks are still suitable for completion in a home office. A corresponding agreement can be found here: Vereinbarung Homeoffice

A new agreement is not necessary in the context of the corona pandemic if an individual home office agreement has already been concluded and has not yet been cancelled.

 

Here you will find further information about working from home, such as how to manage situations from a distance or conduct virtual meetings and conferences: Mobile Work

Overtime and overtime are possible at the mobile workplace in justified cases; a corresponding order with the involvement of the Human Resources and Organisation Department is required. Further information can be found here: www.uni-kassel.de/go/mobile-arbeit

Official discussions and committee meetings Should ideally take place without any personal contact. If personal attendance is necessary, the premises should be selected in such a way that a minimum distance of 1.5 metres can be followed. Please make use of the instructions at https://www.uni-kassel.de/its/startseite/homeoffice-und-mobile-arbeit

How can I protect myself and others during meetings?

  • The Federal Centre for Health Education has summarized the most important hygiene instructions in this diagram: Grafik 
  • Consider whether the meeting can be postponed or replaced by a conference call
  • Limit the group of participants to the required employees / participants
  • Limit topics and time to what is absolutely necessary
  • If possible, you should distribute the group of people in the room so that a certain safety distance (1-2m are recommended) is achieved
  • Do not shake hands
  • Before the beginning of the meeting, everyone should wash their hands thoroughly
  • Participants with cold symptoms should stay away from the event
  • Participants or returnees from risk areas should stay away from the event,; they can possibly be linked up by phone
  • Observe coughing and sneezing hygiene: do not cough or sneeze into your hand, but into the crook of your arm, or preferably leave the meeting room for a short time
  • Take any used handkerchiefs away with us, if relevant, and then dispose of them in a closed waste container
  • Keep your distance from each other during calls. A 15-minute intensive conversation without a safe distance in a room between two people is considered sufficient for transmission.
  • Keep a list of participants with names and contact details (telephone, e-mail) for possible inquiries and keep it safe

To reduce the risk of infection, children may still not to be brought into the offices.

The University of Kassel has reserved a quota of childcare hours for its employees in the flexible childcare program studykidscare from the Studierendenwerk. Children between the ages of 6 months and 12 years can be looked after there. If you are interested, please contact the Family Welcome Service, Mareike Schön (mareike.schoen@uni-kassel.de).

Discussions within the framework of conflict management should be primarily held online; if it is essential for all those involved to meet, compliance with the hygiene standards specified in the service instructions must be ensured.

Discussions within the framework of company integration management should be primarily held online in November 2020; if it is essential for all those involved to meet, compliance with the hygiene standards specified in the service instructions must be ensured.

In the event of sickness, all employees must report sick on the first day of illness, as in the past. Presenting a sick note is only required from the 4th calendar day onwards.

Employees who are in quarantine, especially as a Category 1 contact person after contact with an infected person, agree with their supervisor whether it is possible to carry out the service tasks in mobile work.

If this is not possible, please inform the Personnel and Organization Department and send an e-mail to personalfragen@uni-kassel.de.

 

  • As a matter of principle, holiday leave that has already been approved cannot be revoked due to the Corona pandemic and any holiday trips that may be cancelled as a result.

  • As before, the withdrawal of approved leave is only possible in justified individual cases with the consent of the supervisor. This can be done in particular if, for urgent operational reasons, the individual employee is indispensable despite planned leave, e.g. to maintain the business operations.

  • Employees who were unable to take their recreational leave from 2020 by 30 September 2021 for service-related reasons in connection with the Corona pandemic may apply for a postponement of the expiry date. In this case, the remaining leave from 2020 must be contributed in full by 31 March 2022. This requires a request from the employee and a statement from the supervisor. The application must be sent to the Human Resources and Organisation Department (personalfragen@uni-kassel.de).

     

Further training will primarily take place digitally.

Employees of the State of Hesse are expected not to travel to countries outside the Federal Republic of Germany if the Federal Government has already classified the destination as a high-risk area or virus variant area at the time of departure, this travel is avoidable and there is no exemption from the segregation requirement for persons entering the country. 

A journey is avoidable if at the time of departure there are no compelling reasons for the journey that cannot be postponed. Travel is likely to be unavoidable only in special and exceptional circumstances. 

In this sense, superiors and business travellers are obliged to responsibly examine whether the travel is avoidable and whether the business tasks can be completed, in particular, through alternative means of communication, such as holding video and telephone switchboard conferences. 

The list of high-risk and virus variant areas is published on the homepage of the Robert Koch Institute.

 

 

For the time being, selection interviews in the context of job appointments will only take place digitally. Please note the information under Informationen zur Durch­füh­rung von Aus­wahl­ge­sprä­chen per Vi­deo­te­le­fo­nie 

It is not yet known whether proof of the reason (travel to the workplace) will be required in the context of possible checks by the security authorities.

The employer's certificate issued in March 2020 for a large number of employees or a certificate of employment can be used as proof - alternatively, an existing service card can be used.

In order to be prepared for possible checks, employees who live in areas where the movement radius is restricted to 15 km due to a corresponding incidence can contact the responsible personnel administrator or personalfragen[at]uni-kassel[dot]de to have a certificate of indispensability issued.

 

 

As a result of the current pandemic conditions, junior scientists in temporary qualification positions may experience impairments in the qualification process that make it necessary to extend the period of employment.

We have compiled information on the application requirements and the application procedure for you here:  www.uni-kassel.de/go/corona-vertragsverlaengerung

 

 

6. Information sour­ces and down­load

The Corona warning app has been available for downloading since 16 June 2020. If you have the app, you can be informed anonymously and quickly if you have been in the vicinity of an infected person. The more people use the corona warning app, the faster chains of infection can be broken in future. You can find the most important information about the app on the following website of the Federal Ministry of Health: https://www.zusammengegencorona.de/informieren/praevention