Herd immunity works one of two ways.
One: A vaccine* is given to a large majority. Most are immune, so the disease…
Herd immunity works one of two ways.
One: A vaccine* is given to a large majority. Most are immune, so the disease cannot spread.
Two: The disease kills 60%+ of the population and a lucky mutation saves the rest.
*Does not, has never, worked for coronaviruses due to ADE
😐
— Adam Gaertner (@veryvirology) April 29, 2020