Here you can find current information on the Corona pandemic and the measures of the Faculty of Mathematics and Natural Sciences.

Employer certificate for Corona vaccination

For information on how to obtain the employer certificates needed for Corona vaccination, please visit the following central page:

For teaching assistants and student/scientific assistants in the Faculty of Mathematics and Natural Sciences, the issuing of certificates is decentralized via the responsible institutes/sections. Please contact the office responsible for you.

Update in the hygiene cloud

The templates, handouts and guides in the hygiene cloud are continuously updated. Before creating a hygiene concept, please check whether up-to-date templates are available in the cloud.

You can find the Hygienecloud pages via:

New Corona regulation for universities


Dear colleagues,

also for the university sector from 2021-03-08 relaxation steps are planned, even if initially only to a very moderate extent:

As of March 08 practical courses may be held in presence and without the restrictions that this is only possible in justified exceptions, if otherwise the conclusion would be delayed.

Important for the laboratory practical courses, which are occasionally also planned in the lecture-free period, is the again possible temporary undercutting of the minimum distance for fixed groups. This is coupled with the requirement that medical or FFP2 masks be worn.

The previous restrictions on library services are eliminated. Similar to the state's regulation for other libraries, the university corona ordinance now only has restrictions on the number of visitors based on the size of the library. This provides the opportunity to gradually expand the library's services again over the next few weeks.

This information will also be available on the MNF site beginning Monday. Additional relaxations are expected in the coming weeks. Overall, good news at last.

With best regards
Frank Kempken

Supplementary information

2021-02-03, 2021-02-09

Free trial regulation

For final theses (Bachelor and Master theses) the free attempt regulation cannot be applied.

For the Faculty of Mathematics and Natural Sciences, the requirement applies that a free attempt is also granted for examinations of the winter semester 2020/21 that were taken and not passed before 2021-01-23.

Information about online examinations

The colleagues at elk-medien offer a variety of solutions for conducting examinations in an online format using the OLAT system.

Course: "Information on Examinations during the Corona Phase".

The manual "2020_12_18_Online-Prufungen+CAU-1.pdf" can be found there in the folder "Dateiordner" in the subfolder "Online-Prüfungen".

Training on this will also be offered via OLAT:

There are training sessions on OpenOLAT exam server and conducting online exams for instructors as well as information sessions on e-exams for students.

Mail from the chancellor dated 2021-01-28

A free attempt will be granted for all examinations taken and failed during the examination periods of the winter semester 2020/21.

Further regulations


The forms already completed on hazards in laboratories, office and PC workplaces etc. are still valid. These forms deal with hazards and protective measures when handling work equipment, biological agents, hazardous substances, radiation, etc.

No longer valid is the form "Risk Assessment for Continuation of University Operations during a Pandemic until Official Declaration of Termination. (2020 - Coronavirus SARS-CoV-2)" dated 10/13/2020, which was updated in October and can be found at the following link: This form only asks about the handling of the coronavirus.

Due to the new rules, home office must be used by all persons whose activity is basically suitable for this. This applies to all employees and professors. I ask everyone to behave responsibly and in an exemplary manner.

The current pandemic conditions do not usually allow for face-to-face exams. Therefore, the exams in the upcoming exam periods of the winter semester are to be conducted digitally. Face-to-face examinations are only permitted with the express permission of the Dean. Detailed regulations will be issued by the central administration in the next few days.

For students with children under the age of 14, there is an exemption rule per state regulation. For all other students there will be no free attempt rule in the winter semester. The regular examination conditions for the awarding of grades will apply. If there are any hardship cases in the course of online examinations, these must be reported to the Dean's Office so that measures can be taken if necessary.

For the coming summer semester, it is assumed that everything that can be done digitally will be offered digitally. Presence events are probably only permitted for internships etc. and in compliance with the strict hygiene regulations.
I ask for your consideration. I know that much of this is imposition and can only hope that we will see a significant reduction in incidence levels in the coming weeks and months. Hopefully, the above measures will contribute to this.
With best regards
Frank Kempken

New state regulation on corona measures from January 08, 2021

The State Ordinance on Corona Measures, dated January 8, 2021, contains strict requirements for courses, teaching and examinations. Therefore, the following regulations must be put into effect immediately. Even though this contains impositions, it is imperative to comply with the Land Ordinance. It is the responsibility of the module supervisors to ensure that.

  1. The cohort regulation is no longer valid. All face-to-face courses based on cohorts are to be discontinued immediately.
  2. Attendance exercises, internships, excursions, etc. are only permitted if the course cannot be carried out in any other form, cannot be made up during the semester break, and if this clearly avoids an extension of study time.
  3. Attendance exercises, practicals, excursions etc. may only be carried out with strict and permanent observance of a distance of 1.5 meters and use of the MNB. If this is not safely possible, the course may not be held in presence.
  4. Attendance examinations including individual examinations and disputations are no longer permitted and must be replaced by video conferencing or other digital formats. Exceptions are only possible upon request with precise justification of a compelling reason and must be approved by the Dean or Dean of Studies. Alternatively, consideration should be given to postponing the examination.

Procedure in case of an infection

  1. If a case of infection - whether among employees or students - becomes known, the Dean ( and the Corona Coordination Team ( must be informed immediately.
  2. In each individual case, it must then be decided whether a course should be suspended for the time being or whether employees should be sent home at short notice until the public health department provides feedback - or whether they should not be sent at all.

Winter semester 2020/21

2020-11-30: New corona regulation

Winter semester 2020/21

Please refer to the Corona Statutes and the Teachers' Handbook for WS 2020/2021.

Preventive measures are now to be taken with a sense of proportion to avoid far-reaching operational restrictions such as those we experienced in spring 2020. The aim is to counteract a further increase in infections while keeping restrictions, especially for research operations, to a minimum.

For teaching, the agreed concept for the winter semester will initially be retained. Courses may only be held in attendance if there is no sensible alternative, such as practical exercises or similar. For students in their first semester, no exceptions are allowed after 30.11.2020.

Home offices are to be used more frequently again in order to reduce the number of students present at the same time and thus to reduce contacts. The concrete handling is the responsibility of the respective facilities/areas/institutes.

New corona regulation from 30.11.2020

Since 30.11.2020 the new Corona regulation of the country is in force. According to it:

  1. Teaching at universities takes place in digital form, unless this ordinance allows exceptions.
  2. Exams are permitted in attendance. A minimum distance of 1.5 meters must be maintained.
  3. Practical courses are permitted in attendance. A minimum distance of 1.5 meters to other persons must be maintained and a mouth-nose cover must be worn.

For all other regulations, please refer to the ordinance or corona page of the CAU.

General information:

  1. Students are to be informed via the websites mentioned under (2) which online and face-to-face events are planned. If all details are listed in Univis, a corresponding note on the website is sufficient.
  2. The corresponding websites for the sections are:
  3. In sections with a mixture of face-to-face exercises with digital lectures, studyability must be ensured. Digital lectures should be made available as recordings, because it is not possible for students to commute between university and their place of residence in a sequence of online and face-to-face lectures. Alternatively, in subjects that are not part of a double degree program, online and presence events can be staggered so that there are no time problems.
  4. Persons at risk, foreign students and other persons who cannot participate in classroom events due to Corona must be compensated for disadvantages or alternative offers must be created in an appropriate manner. The examination boards are responsible for this.
  5. The rules of hygiene and distance must be observed for face-to-face events. This requires, for example, a reduction in the number of people in the rooms and thus a reduction in the number of courses or a larger range of parallel events with a reduced number of participants*. Mixed forms of presence and video formats are also possible.


  1. For education, it is important that a uniform concept is used to document and track which students belong to a cohort. It must also be ensured, for example, that students are not assigned to more than one cohort at the same time and that they do not change cohorts until after a fortnight's interval.

For the administration of cohorts, all institutions should therefore use the cohort administration via OpenOLAT and students should be informed accordingly. The following is an overview of the procedure to be used.

  • The responsible dean's office/institution reports the cohorts to be created to the central administration of the cohorts in the form of lists or tables to the central e-mail address after prior examination of overlaps etc., so that a corresponding course can be created. Please name the cohorts clearly.
  • The students will be informed by the teachers about the assignment to a cohort and will be asked to enroll in the corresponding cohort via OpenOLAT.
  • It is no longer possible for students to leave the cohort or change cohorts.
  • An OpenOLAT enrollment is a prerequisite for participation in a cohort event. The deadline for OpenOLAT enrollment can be set by the faculty, but should be before the second event date if possible.
  • If cohort events have already taken place or started, these should also be registered at the above e-mail address, created as a course and the participants entered subsequently.
  • Before enrolling in a cohort, students will be shown an overview of the rules of conduct, which must be confirmed (see appendix; the document is structured in such a way that you can also use it as a printout with signature)
  • The helpdesk staff of the data center will be happy to answer your questions:

Bachelor and Master Theses

  1. All bachelor theses can also be done as purely theoretical work. This regulation is relevant for subjects where the bachelor thesis is typically written in a laboratory.
  2. All necessary decisions are made by the chairperson of the examination board with the involvement of the supervisors.

Courses and examinations

  1. Classroom teaching may be conducted after a hygiene concept has been drawn up for the respective course and forwarded to the dean's office.
  2. The Corona statutes stipulate in §3 that, with the written consent of the dean, classroom courses may be replaced by other types of courses. Since the necessary decisions are best made in coordination between the person responsible for the module and the examination board of the subject, the following procedure is established for the Faculty of Mathematics and Natural Sciences:
  3. In agreement between the person responsible for the module and the respective examination board, a list of the attendance courses to be replaced by different course types will be determined.
    • This list can also include classroom courses which are not feasible under corona conditions (e.g. internships) and are therefore assessed as having passed without an examination (without grade).
    • The list is submitted to the dean for signature.
    • With the signature of the dean the list is legally valid and must be made known to the students of the subject.
    • Complaints from students must first be addressed to the responsible examination board. If the examination board rejects the complaint, the students can contact the Dean of Studies.
  4.     Excursions:
    • Excursions are possible within the framework of existing hygiene concepts.
    • Planning for future semesters is currently associated with great uncertainty. If possible, generous cancellation regulations should be observed.
  5. The examination offices and student advisory services are closed to the public. Advice is only available online or by telephone. The requirements of successfully completed modules for following modules are valid again, as far as the necessary examinations could be offered. The implementation is the responsibility of the respective examination committees under consideration of §8 of the Corona Statutes.


  1. The administration and registration procedure for dissertations was completely converted to an online procedure. Further information can be found at
  2. The forms should only be filled out electronically. Under no circumstances should they be printed out, filled out by hand or signed and then scanned. This hinders further processing in the dean's office.
  3. During the disputation only the examiners and the candidate should be present if possible. The Disputation usually continues to take place as a classroom event.
  4. In justified exceptional cases, a disputation can also take place as a video conference upon request. This must be coordinated with the Dean's Office.
  5. In the case of disputations, the university public is only established via video conferencing. The corresponding regulations for this must be observed.


  1. The libraries and collections of the faculty remain open. The type and scope of use is governed by the respective usage regulations.
  2. If student workstations exist and are used in specialist libraries, students must also wear an MNB at their workstations, since the university corona ordinance does not contain any exceptions to the mask requirement in libraries.
  3. This mask obligation does not apply to employees in libraries if the minimum distance of 1.5 meters is ensured.

Board meetings and appointment procedures

  1. All committee meetings, meetings (including working group meetings) and also application presentations may only be held via video conference until further notice.
  2. Due to the corona pandemic, special precautionary measures must be taken. Hygiene and distance rules must be observed at all times. The regulations of the framework hygiene plan must be observed.
  3. The university public is to be appropriately involved. Due to the limited room capacities, this can be done, for example, by using the BigBlueButton. Persons who wish to participate must register in advance. The organizational responsibility lies with the institute in which the respective professorship is advertised.


  1. Research is not restricted, but is also subject to the applicable rules of distance and hygiene.
  2. Furthermore, all employees are required to work in the home office in coordination with their superiors, unless a presence on site is necessary for the basic maintenance of operations.
  3. Employees whose work cannot be carried out at home may resume their activities at the university, subject to the rules of distance and hygiene and the risk assessments. This does not apply to persons at risk.
  4. Hazard assessments must be prepared and kept up-to-date for all facilities. The form created for this purpose by the Safety Engineer's Office must continue to be used.
  5. The general hygiene plan must also be observed:
  6. The employees are to be instructed accordingly by their superiors. The staff unit Safety Engineer provides appropriate assistance on its website and advises employees and superiors.
  7. The Corona website is authoritative for the prevention and protection measures currently in force at CAU. All members of the CAU regularly inform themselves there about the applicable regulations.

Corona website and risk persons

  1. The CAU's Corona website is continuously revised and updated:
  2. Special regulations apply to members of risk groups. For the company's practice of assessing special risks, this means in particular that the pre-existing conditions mentioned there (e.g. cardiovascular diseases, diabetes, immunodeficiency), but not, for example, age alone, are relevant to decision-making. Employees affected by these risks indicate to their supervisor that they belong to one of the risk groups mentioned in these notes; a certificate is not required. If in doubt, please contact the company physician.
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