Due to the large number of coronavirus infections, the German government has classified individual regions in 11 European countries, including the whole of Belgium, Iceland, Wales and Northern Ireland, as high-risk areas. Also, for the first time in a pandemic, the German disease control body Robert Koch Institute (RKI) included the UK in its health warnings.

Under new decisions by the Berlin federal government, 17 of the 27 EU countries are now considered at least in part to be high-risk areas.

Otherwise, the classification of the risk area and subsequent travel warning is issued if the number of infected exceeds 50 cases per 100,000 inhabitants within seven days.