[M T]

Take home message: indoors, neither being more than 6 feet nor being exposed less than 15 minutes will save you if you are downwind under the right circumstances.

This is why any indoor activity is highly risky, even at 25% capacity, or whatever it is that they are restricting it to these days.

Why does indoor matter here?   With any particular airflow in the right direction, wouldn't this have happened whether there were no walls or ceiling?  Is there some laminar airflow that happens from fans that is distinct from natural breezes?

If someone finds the study's link, please post it.  I'd like to see if they specify the times that the infector and infectees were without their masks.
I'm trying to understand whether it is airborne spread to lungs/eyes or airborne spread to food/drink and then to mouth.

I will point out that these distances are NOT too far for droplets to travel.  I've forgotten the exact numbers, but I seem to recall that 1 m/s flow allows for this much distance.  (It was mentioned in one of the UCSF Grand Rounds.)


Gee, too bad we can't do this tracing for each of the 753 new cases of COVID in SCC today. (That was satirical) I'd have to think you could do this for maybe one case a week or month.

[M T]

Take home message: indoors, neither being more than 6 feet nor being exposed less than 15 minutes will save you if you are downwind under the right circumstances.

This is why any indoor activity is highly risky, even at 25% capacity, or whatever it is that they are restricting it to these days.

Why does indoor matter here?   With any particular airflow in the right direction, wouldn't this have happened whether there were no walls or ceiling?  Is there some laminar airflow that happens from fans that is distinct from natural breezes?

If someone finds the study's link, please post it.  I'd like to see if they specify the times that the infector and infectees were without their masks.
I'm trying to understand whether it is airborne spread to lungs/eyes or airborne spread to food/drink and then to mouth.

I will point out that these distances are NOT too far for droplets to travel.  I've forgotten the exact numbers, but I seem to recall that 1 m/s flow allows for this much distance.  (It was mentioned in one of the UCSF Grand Rounds.)


Gee, too bad we can't do this tracing for each of the 753 new cases of COVID in SCC today. (That was satirical) I'd have to think you could do this for maybe one case a week or month.