I think the idea that larger droplets are required for an infection is congruent with an R0 of about 3. If super small droplets would be sufficient then a singl

I think the idea that larger droplets are required for an infection is congruent with an R0 of about 3. If super small droplets would be sufficient then a single person would easily infect pretty much everybody taking a bus with her/him together. R0 would be much larger.