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Corona Virus – Relevant information (as of June 7, 2021) for all scientists at the Max Planck Institute for Mathematics

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The Corona regulations are divided into the areas in which they apply. There are different resolutions for NRW, the city of Bonn and the institute respectively. The city of Bonn is introducing relaxations of the Corona regulations from May 22, 2021. Please find all updates marked yellow in the respective areas.

Updated Corona Regulations (valid from June 7, 2021):

During the pandemic, regulations are imposed by different sources. The German government imposes the overall rules but the governments of the individual Länder (states in Germany) as well as some cities have the freedom to impose regulations with regard to the particular situation of the area. Here we try to summarize the information relevant for our guests as best as possible and to keep it up to date. We assume no liability for this information and refer to the government websites for the official regulations:

NRW website (only in German), Federal Foreign Office's website, city of Bonn's website.

German government / NRW government regulations

  • UPDATE: From Monday, May 17, 2021, new rules for fully vaccinated and recovered persons (see below).
  • UPDATE: From Thursday May 13, 2021, there are new travel / entry regulations in place, please read them below under "travel".
  • UPDATE: From Saturday, April 27, 2021, it is mandatory to wear a FFP2 or KN95 mask by using the public transport. 
  • UPDATE: From Saturday, April 24, 2021, employers must offer home office where possible.
  • everyone can get tested for free with a rapid test once a day. It is not clear whether you have to be registered in Bonn to do this. Please find more information on where you can get tested here.
  • couples are considered as one household (regardless of their living arrangements).

New rules for fully vaccinated persons: (starting May 9, 2021)

  • contact- and exit restrictions no longer apply to fully vaccinated and recovered persons (no longer counted at private gatherings)
  • where the proof of a negative test result is a required (e.g. hairdresser or the zoo), fully vaccinated and recovered persons will be treated the same as those who tested negative. They do not have to have a negative test result.
  • sports: the restrictions that non-contact individual sports are only possible alone, in pairs or with members of one's own household have been lifted for vaccinated and recovered persons.
  • quarantine obligations also do not apply to vaccinated and recovered persons - for example, when entering the country from abroad. However, this does not apply to travel from so-called virus variant areas.
  • important: Vaccinated, recovered and tested persons must continue to wear mouth-to-nose coverings and observe distance restrictions. There is no relief here.

For these rules to apply, vaccinated persons must present proof of complete vaccination protection - for example, the yellow vaccination certificate. Depending on the vaccine, one or two vaccinations are required for complete protection. At least 14 days must have passed since the last required single vaccination. Additionally, one must not have symptoms of possible Covid 19 infection. These include shortness of breath, coughing, fever, and loss of smell or taste.
Those who have recovered need proof of a positive PCR test (or other nucleic acid detection) at least 28 days and no more than six months ago. Again, in addition, the freedoms apply only to people without Covid-19-type disease symptoms.

Regulations in Bonn

  • UPDATE: From Monday, June 7, 2021, appointments at the city administration / city hall are possible without a negative test result but with an appointment and wearing a medical face mask.
  • UPDATE: From Friday, May 28, 2021, shopping in all retail stores in Bonn is possible again without a prior negative Corona test.
  • UPDATE: From Saturday, May 22, 2021, the curfew restrictions are no longer valid and some bus and train lines are running again during the night.
  • UPDATE: From Saturday, May 22, 2021, it is allowed again that one household meets with one person from another household and up to 5 people from two different households meet together (not counting children up to 14 y/o, fully vaccinated or recovered people).
  • UPDATE: From Saturday, May 22, 2021, restaurants and cafés etc. may serve guests with a negative test result who must be assigned a seat or standing area.
  • UPDATE: From Saturday, May 22, 2021, private overnight stays in hotels and similar establishments are permitted at up to 60 percent of capacity; a negative test result is required.
  • UPDATE: From Saturday, May 22, 2021, practice of non-contact sports on outdoor sports facilities with up to 20 people are allowed. Contact sports in the open air in groups as within the general contact restrictions and for groups of up to 20 children up to and including 14 years of age.
  • UPDATE: From Saturday, May 22, 2021, the outdoor pools in Friesdorf and the Hardtbergbad open only for sporting activity and under certain regulations (e.g. negative test result). Sunbathing lawns may not be used. The remaining three open-air swimming pools in Bonn are to open successively.
  • UPDATE: From Saturday, May 22, 2021, libraries may open, museums and other cultural institutions may open with appointment booking, and outdoor concerts with up to 500 people may be held under certain restrictions.

There is an obligation to wear a face mask in defined (more busy) areas of the city:
In the area of the main station, Bertha-von-Suttner-Platz and Konrad-Adenauer-Platz a mask must be worn between 7 a.m. - 10 p.m.. In other defined areas, a mask must be worn on workdays between 10 a.m. and 8 p.m. There are signs hanging around the city, which signal where to wear a mask. You can see the sign and a list of all the streets where a mask is obligatory here.

Please note that high penalties will be incurred if you do not comply with the regulations!

Further regulations in Bonn:
- contacts should be minimized to the absolute minimum
- private or public parties are unacceptable

You can get more information on the city of Bonn's website.

Medical mask obligation

The new regulation states that it is obligatory to wear a medical mask in stores and doctor's offices. Fabric masks are no longer adequate in these locations. Medical masks in the sense of this regulation are so-called surgical masks, masks of the standard FFP2 or masks comparable to these (KN95/N95).


(regulations from the North Rhine-Westphalia government)
In Germany the individual Länder are responsible for quarantine regulations (in our case NRW). The Länder have put in place their own regulations on the basis of a specimen regulation.
Travelers who are allowed to enter Germany (see below) and have visited a risk area, high incidence area or virus-variant area in the last ten days before entering Germany must register at before arriving in Germany and carry proof of registration with them upon entry. Those who have only passed through a risk area and have not had a stopover there are exempt from registration.

As of March 30, 2021, all persons traveling to Germany by air will generally be required to present a negative Covid-19 test result prior to travel.

Entering / returning from risk areas
Entry by air (without previous stays in high incidence areas or virus variant areas):
negative Covid-19 test result, proof of complete Covid-19 vaccination (at least 14 days must have passed since the last required vaccination dose) or proof of recovery after infection (those who have recovered need proof of a positive PCR test (or other nucleic acid detection) at least 28 days and no more than six months ago). Proof is required prior to entry and must be presented to the airline prior to travel.

In case of a previous stay in a risk area (i.e. neither virus variant area nor high incidence area) and entry by a means other than air; i.e. by land or sea (e.g. by car, train or ship): negative Covid-19 test result, proof of vaccination or recovery after infection. Proof must be presented no later than 48 hours after entry.
Exceptions may apply:
- for persons, who have only passed through a risk area and did not have a stopover there,
- for persons, who only pass through Germany and leave the country again by the quickest route,
- in the context of border traffic for persons who have been in a risk area for less than 24 hours or only enter Germany for up to 24 hours.

For entries from risk areas quarantine is mandatory for 10 days until proof of complete vaccination, recovery from infection, or a negative test result is submitted through the Federal Immigration Portal (

Entering / returning from a high incidence area
For entries from high incidence areas a quarantine is mandatory for 10 days, but the quarantine can be terminated by proving a new negative test result conducted no earlier than five days after entry. Quarantine obligations do not apply to vaccinated and recovered persons traveling from a high incidence area - for example, when entering the country from abroad.

Entering / returning from a virus-variant area
There is a transport ban for virus-variant areas. Transport companies e.g. airlines or railroad companies, are not allowed to transport persons from these countries to Germany. Transportation is only possible in narrowly defined exceptional cases, in particular for persons with residence and existing right of residence in Germany, persons who are only transferring in a transit area of a commercial airport, and in a few other special cases. German nationals not resident in Germany should not be denied boarding.
In these exceptional cases, immediately after arrival, travelers are required to go into quarantine for 14 days (starting in the day of departure from one of these areas) and have to report to the Health Department if they show any symptoms. Furthermore, they have to submit a negative test result prior to entry, which is not older than 48 hours. There cannot be made an exception from the quarantine for vaccinated and recovered persons traveling from a virus-variant area and the quarantine cannot be terminated by getting tested again.

For arriving at the airports Cologne-Bonn (CGN) and Düsseldorf (DUS), the NRW regulations apply. For travelers who arrive at Frankfurt airport (FRA) the regulations could be different, as it is located in another federal state (Hessen), please check with your airline and with the official regulations of Hessen.

Covid Vaccination

Here you can find some information about vaccination on the homepage of the City of Bonn.
There is no entitlement to vaccination. Only people who are officially registered at the city of Bonn, can register for a vaccination.

Starting from June 7, the vaccination prioritization will be invalid. Everyone can arrange an appointment for vaccination after that date.

  • UPDATE June 7, 2021: Due to the vaccine shortage, no first-time vaccinations can be carried out via the Vaccination Center of the City of Bonn, probably until mid-June 2021. In the booking portals of the city of Bonn and the associations of panel doctors, it is therefore not possible to make appointments for first-time vaccinations until further notice.
  • when appointments are available, you can register here or in NRW here (both are only in German).  These will take place at the vaccination center at the World Conference Center in Bonn (WCCB).
  • it could be that the General Practitioner (Hausarzt / Allgemeinmediziner) can only offer the vaccine with AstraZeneca. Mostly there is a waiting list to get a vaccine with Biontech/Pfizer. For doctor recommendations, please be so kind and contact our reception lady at MPIM (by e-mail).

Vaccination side effects can be reported here.

On the homepage you can be registered to get a vaccination at a doctor’s office nearby. With, they want to help provide quick access to Covid-19 vaccines and their goal is to unite doctors and people interested in vaccination in order to prevent vaccines from going to waste. All those involved in the project work on a voluntary basis. is a non-profit organization. The page is currently still under construction, but will be online very soon and is already usable for registration!

Regulations from us and the Max Planck Society

- UPDATE: From Tuesday, May 4, 2021, there is a mask obligation in the institute, except for in your office and during eating
- Every confirmed case of Covid-19 has to be reported to or 0228-402-255. Please also inform us if you have suspicious symptoms, so that we can quickly trace your contacts.
- There can be no lectures or seminars running live at MPIM.
- Professional travel must be avoided.
- Work from your home office as much as possible, keep your visits to MPIM brief
- if you enter the institute, please disinfect your hands immediately at the dispensers on the ground floor next to the elevator or at the reception desk
- do not stay in a small office (or one without windows) with multiple people
- participate in virtual meetings and seminars,
- participation in livestreams in the same room is not allowed for more than two households!
- wash and disinfect your hands regularly,
- keep at least a 1.5m distance,
- ventilate the rooms regularly.

If you meet in person, we strongly encourage you to meet outside. In case you meet for a brief discussion at the institute, wear masks and meet in a wide and well-ventilated area, such as the blackboards in the tea area, lecture hall, etc.

We all hope that normal life (at MPIM and elsewhere) can resume soon.

Gerd Faltings, Peter Scholze and Peter Teichner

Further information from our staff

  • The reception and IT at MPIM will be staffed as usual.
  • The library is open and staffed Wednesdays. Please disinfect your hands when entering and leaving the library.
  • Our staff will work mostly from home but will be still available by e-mail and for urgent questions in person at MPIM on Wednesdays.
  • The daily tea will not take place until further notice.

We ask you to make responsible decisions for you and other people to help slow down the infection rate. We wish you good health and a positive mindset. We thank you for your understanding and will keep you updated about the situation. For further questions, please do not hesitate to contact us by e-mail.

Information for invited guests

You are still welcome to start your research stay at the institute as planned, but please be aware of the current entry regulations (see above).

Unfortunately, we cannot postpone your visit, since our office space is already fully booked. However, you can shorten your visit if needed. You can also choose the option to reapply through our online application system (no new recommendation letters are needed in this case).

If you have already booked an accommodation and you plan to cancel your stay, please contact the landlord immediately to cancel the rental contract (to avoid costs) and try to find a solution for both sides.

If you have not yet booked a flight or accommodation, please wait before doing so and book only at short notice. We do not know how the situation will change and can only recommend not to book anything yet. If you have booked your flight already, check this link to rebook or cancel for free.

Please be so kind and inform us about your plans by e-mail.


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