“...said he would not rule out the possibility that it spreads through the air in tight quarters.”
Ok, let’s speak plainly. That means if someone breathes in your face you can get it. That means if you are talking to someone standing right in front of you, you can get it.
“Tight quarters” is like, oh, lets say... AN AIRPLANE?
“Tight quarters is like, oh, lets say... AN AIRPLANE?”
Also, any mass transit systems like Bart, Buses, Vans and even Cabs.
Elevators, cubicles at work and any closed space with a recirculating heating/cooling system.