8/ Guangzhou restaurant, buses, other cases. “Contorsionist thinking” (B. Nazaroff) required to explain w/o aerosols - Note that when face-to-face, majority of infection likely through aerosols, much more concentrated right in front of person:https://www.sciencedirect.com/science/article/abs/pii/S0360132320302183 …
-
-
Fundamentally, aerosols are defined as solid or liquid droplets suspended in air ranging in size from 1 nm up to 1000 microns. So "short range droplet spread through the air" is technically airborne/aerosol transmission.
-
So I do think this is the divergence that causes issues
@GidMK was pointing to - how “airborne” is classically used/defined in medicine and epi is very different and carries seriously implications, meaning that we need a diff term to explain that it’s not like measles... - Show replies
New conversation -
-
-
But if short-range droplet spread is dominant, how do you explain the huge difference in the number of infections outside versus inside. That can be explained easily if aerosol transmission is the main route.
-
Because it is easier to distance outside, perhaps. Short range aerosols don’t seem to be a huge risk because N95s aren’t additive on top of regular masks and distancing can explain inside/outside. Willing to consider short range aerosol but more real world data needed
- Show replies
New conversation -
-
-
2 Q's: 1) How do you sort out short range vs long range in a room where there is mix of both? 2) How are you sure it is bigger vs smaller droplets? For every big droplet, there are 100 or more smaller droplets/particles. When you breathe, you inhale the full mixture.
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.