WHAT IS HERD IMMUNITY?
A situation in which a sufficient proportion of a population is immune to an infectious disease (through vaccination and/or prior illness) to make its spread from person to person unlikely. Even individuals not vaccinated (such as newborns and those with chronic illnesses) are offered some protection because the disease has little opportunity to spread within the community (CDC Definition).
EVERYTHING YOU NEED TO KNOW
REAL WORLD CASES
ANTIBODIES / OUTBREAKS / HERD IMMUNITY