German Chancellor Angela Merkel is in quarantine after meeting with a doctor on Friday who has since tested positive for the virus, her spokesman said.
Merkel was told about the contact after a press conference on Sunday in which she announced further measures to try to curb the spread of the coronavirus.
Her government has banned meetings of more than two people outside work and home for two weeks.
The German government has also ordered hairdressers and beauty, massage and tattoo parlors to close, and restaurants will only be allowed to offer takeaway services.
The country had already ordered the closure of schools and other non-essential shops.