Herd immunity and herd protection.
Paul
Yash
Y
D002648:Child; D006801:Humans; D032521:Immunity, Herd / Q000276:immunology*; D007114:Immunization; D017053:Infection Control; D011051:Poliomyelitis / Q000453:epidemiology / Q000517:prevention & control / Q000635:transmission; D013742:Tetanus / Q000453:epidemiology / Q000517:prevention & control / Q000635:transmission