A Question on Herd Immunity, and Testing.

[The-Hack]

I wonder if our “herd” immunity builds even among those who never test positive, never show symptoms, but who have been exposed to the virus.

At this point, you about have to assume most people in NY, Spain and Italy have been repeatedly exposed. Some percentage will never get sick.

Surely, mathematical models (with lots of testing) would tell us when we have passed certain levels of risk, in the months, ahead.

 

[Elbridge]

Maybe it explains why California hasn't been hit nearly as hard as it should be based solely on population.

 

[Punkin Puss]

I wonder if our “herd” immunity builds even among those who never test positive, never show symptoms, but who have been exposed to the virus.

At this point, you about have to assume most people in NY, Spain and Italy have been repeatedly exposed. Some percentage will never get sick.

Surely, mathematical models (with lots of testing) would tell us when we have passed certain levels of risk, in the months, ahead.

Genetics, case of natural selection.