My question deals with the interpretation of the data presented, particularly in light of media (NBC, CBS, etc.) providing advice and answering questions of the public.
Focusing on two particular assertions: 1) currency (folding bills) are not likely to be an source of transmission. ("no need to clean bills received from unknown sources") 2) Aerosolized virus will become impotent after 3 hours.
In the first instance, that of currency, the Lancet paper did inoculate bank notes and after 2 days there was still detectable virus on the bank notes. Measurement after 4 days, the virus level was undetectable.
In the second instance, with regard to aerosolized virus, the New England Journal paper appears to have suspended the experiment at 3 hours, but at 3 hours there was still a detectable level of virus present (albeit at half the initial level).
Now, here is where I'd like help: In both papers, the researchers measured the "Virus Titre, with the dimensions of "TCID 50". Is there some meaning to that dimension, that I'm overlooking?
To assist here are two examples: