The Robert Koch Institute (RKI) continues to classify the current corona development as "very worrying".
It advises "urgently to cancel or avoid larger events if possible, but also to reduce all other unnecessary contacts".
This emerges from the institute's weekly report on Thursday evening.
"If they cannot be avoided, regardless of the vaccination or convalescence status, you should do a test beforehand and use the Corona warning app."
Vaccinated and convalescent people should also wear masks, keep their distance and regularly ventilate rooms in which there are several people.
In the case of respiratory illnesses such as a runny nose or cough, it is “absolutely necessary” for all people, including those who have been vaccinated, to stay at home, but also to contact a family doctor and have a PCR test done there.