_____ implies that if enough people in a population are immunized against certain diseases, then it is very difficult for those diseases to spread. a. Herd immunity b. Passive immunity c. Active immunity d. Natural immunity

_____ implies that if enough people in a population are immunized
against certain diseases, then it is very difficult for those diseases to
spread.
a. Herd immunity
b. Passive immunity
c. Active immunity
d. Natural immunity
by

1 Answer

Answer :

a. Herd immunity
by

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