TOPSHOT - Stuart Malcolm (L), a doctor with the Haight Ashbury Free Clinic, puts on a mask before speaking with homeless people about the coronavirus (COVID-19) in front of a boarded-up shop in the Haight Ashbury area of San Francisco California on March 17, 2020. - Cities across the nation are worried about the homeless population as the coronavirus pandemic surges with the US death toll reaching 100. (Photo by Josh Edelson / AFP)