San Francisco,
California


Nov 28, "state"
Population
COVID-positive
All infections (model)
Contagious (model)
Immune (model)
Fatalities
Fatality rate (model)
Nov 28
881,549
15,377
114,385
0.8684%
12.107%
160
0.1399%
Dec 31, predictions
COVID-positive
All infections
Contagious
Immune
Fatalities
Dec 31
19,384
145,375
1.137%
15.3539%
204

Event/Party Threat Level:
Going to a party? Check the threat level for your chances to get COVID. For staying 1 hour at a party with 20 people, the threat is:

NO MASKS:

YES MASKS:

: low, <5% : med, 5-15%
: risky, 15-25% : danger, >25%
(For other party sizes and durations, scroll down to our COVID-Party-Planner.)


COVID-Party-Planner: chances of COVID depending on party-size and duration.


Assumptions: All members at the party are independent random draws from the county population. The mingling model is random shifts of 4 people per 10 minutes. 10 minutes of mingling with an infected person suffice to transmit infection.