Green Your Life interior

Natural vs. Artificial Herd Immunity: What Have Failed Vaccination Programs Taught Us?

Herd immunity is a concept by which an infectious agent can no longer spread across a population because a sufficiently large percentage of individuals have immunity, either from a history of exposure to the wild-type of the infectious agent, or due to acquired immunity from vaccination with a vaccine designed to protect against the wild-type.  From an individual perspective, herd immunity can afford protection to one who is not immune.
 

Back

 
 
close (X)