Dear all,
I've been informed that one participant of the last seminar did test positively on covid (antigen test today).
So I am letting you know. The person was vaccinated as I suppose are most of you, so there should be very little danger, and according to the official regulations this would not count as a risky contact anyway (> 2 m distance), see https://covid.gov.cz/en/situations/infection-and-general-measures/i-was-iden...
However, if you want to be extra careful, perhaps before visiting a vulnerable relative, I understand the best time to try a PCR test is 5-7 days after a contact.
Stay safe,
R
-- Robert Šámal IÚUK MFF UK -- CSI of Charles University