Update 2022-07-13: According to current information from the Federal Foreign Office on Wednesday (13 July), the mask requirement in public has been reintroduced. In addition, triple-vaccinated adults no longer need a PCR or antigen test for domestic travel, while double-vaccinated adults need an antigen test (not older than 24 hours) and single-vaccinated adults need a PCR test (not older than 48 hours).
