08-05-2020, 12:04 PM
Most transmission is indoors.
Masks help. A lot.
There are certainly going to be some cases from outdoor transmission, but the physics of particle flow make it much less likely. I'll bet most of the "backyard barbecue" transmission involved going indoors while attending or very close contact without hand washing or masks. I don't think outdoor activities need to be banned IF people wear masks and they keep a few feet of distance. Hard to wear a mask while eating, though.
Masks help. A lot.
There are certainly going to be some cases from outdoor transmission, but the physics of particle flow make it much less likely. I'll bet most of the "backyard barbecue" transmission involved going indoors while attending or very close contact without hand washing or masks. I don't think outdoor activities need to be banned IF people wear masks and they keep a few feet of distance. Hard to wear a mask while eating, though.