The risk from handshakes (or other surfaces) is considered pretty low: https://www.cdc.gov/coronavirus/2019-ncov/more/science-and-research/surface-transmission.

The risk from handshakes (or other surfaces) is considered pretty low: https://www.cdc.gov/coronavirus/2019-ncov/more/science-and-research/surface-transmission.html https://www.cdc.gov/coronavirus/2019-ncov/more/science-and-r... Of course the risk-averse would not be satisfied with "pretty low risk" and can still refuse handshakes. I remember reading that for someone to give you Covid through a handshake, they'd have to cough into their hand, shake your hand, and you'd have to put your hand close to your mouth/nose soon after that. The Chinese government were reporting virus samples found on surfaces after 3 days, but these were tiny samples, tiny viral loads won't harm us. Indoor masking is also not 100%, you can't smell Covid but you can smell cigarette smoke, I think an appropriate analogy is, if someone's been exhaling their cigarette-smoke-laden breath into a room for 30 minutes, and you walked into that room, would you smell the cigarette? Even with a Covid mask?