Here's a whole thread about a similar movement during the 1918 Spanish Flu epidemic, in San Francisco: https://twitter.com/timkmak/status/1251936242834563073 h

Here's a whole thread about a similar movement during the 1918 Spanish Flu epidemic, in San Francisco: https://twitter.com/timkmak/status/1251936242834563073 https://twitter.com/timkmak/status/1251936242834563073