29th. went ahead and got tested and let the contact tracers know about their travel history and where they had just come from. what they are doing in san francisco county is they have a very robust testing system. and everyone who tests positive, they then send it to the university of california san francisco who then checks those positive tests to see what variant they are. in fact, take a listen to one of the doctors from ucsf about how quickly they moved on this. >> i heard about it actually yesterday at about 3:00 p.m. and we were able to receive the sample in the laboratory by 8:00 p.m. we ran a very fast molecular test which looks for what we call spike gene dropout. we were able to confirm the detection of omicron within five hours, and we had most of the genome within eight hours. >> it's also worth noting we know this passenger has mild symptoms and is recovering and