obviously one of them from that room is spreading it - they should all be required to get tested or isolate for 14 days.
“No persons are more frequently wrong, than those who will not admit they are wrong.” -- François de La Rochefoucauld
"Those who cannot accept the past are condemned to revise it." -- Geo. Mathias
The German word for contraceptive is “Schwangerschaftsverhütungsmittel”. By the time you finished saying that, it’s too late