Claim: During the 1918 flu pandemic, San Francisco residents formed the "Anti-Mask League." San Francisco "was ultimately one of the cities that suffered the most with a high death rate."
Fact-check: 1918 flu pandemic gave rise to Anti-Mask League
Verdict: mostly-true
Organisation: PolitiFact
Author: Amy Sherman
Date published: 2020-04-24T00:00:00