TYB!
Lyophilized virus, which is in powdered form, can "live" indefinitely if not exposed to UV light, etc.
Once inhaled, the moisture of mucous membranes reactivates it.
TYB!
Lyophilized virus, which is in powdered form, can "live" indefinitely if not exposed to UV light, etc.
Once inhaled, the moisture of mucous membranes reactivates it.