It's a hunch, not a well informed one either. It's been growing exponentially, what more do you want? lol.
It also isn't the flu so when a carrier shows symptoms, officialdom notified, infected self-quarantines or hospitalised, contacts self-isolate, all others run for a mile.
This isn't the time of Black Death, it's a science based society where even the silliest of us probably knows more the the greatest scientist 300 yrs ago.
