2hats
Dust.
Bear in mind that that 1-in-95 is already six days out of date.Question: are airplanes with their air system circulation thingies safer or worse than sitting in a room with say 200 strangers for a couple of hours?
if 1 in 95 brits has covid right now (apparently) then likely it’ll be joining us on any given outgoing flight.
Not delta/B.1.617.2 but an example for an early type variant...
DOI: 10.3201/eid2611.203299.