Yeah, honestly I'm not qualified to answer that question. If I had to guess, one of the reasons why going airborne would be so bad is that it allows the virus t

Yeah, honestly I'm not qualified to answer that question. If I had to guess, one of the reasons why going airborne would be so bad is that it allows the virus to sprawl (geographically) much faster than it ever could otherwise (because it would be subject to wind etc). Basically it could and would spread much faster and further if it were truly airborne. Also pretty much makes it impossible to contain because we can't just quarantine the earth's atmosphere.