Between that and stuff like TB from having human crap in the streets how bad is San Fransisco gonna get?
You know, until I learned about how people crapped on the streets of various cities, I thought that was an obsolete medieval practice. That practice helped make numerous diseases way more dangerous. Wastewater treatment effectively prevents almost all waterborne diseases, especially malaria and typhoid nowadays, and now people do the disgusting practice that spread diseases back in the old days.