The immunity of a population that may be protective for previously unexposed or unvaccinated individuals is called:
A)collective immunity
B)artificially acquired passive immunity
C)naturally acquired passive immunity
D)herd immunity

Question

Quizplus · Accepted Answer

Herd immunity refers to the protection of unvaccinated individuals within a population due to the high level of immunity in the rest of the population. This can occur through natural infections or mass vaccination campaigns. When a large portion of a population is immune to an infectious disease, the transmission of the pathogen is interrupted, which limits the opportunity for the disease to spread and protects those who are not immune. Therefore, herd immunity can play an important role in protecting vulnerable populations, such as newborns, elderly individuals, and those who are unable to receive vaccines for medical reasons.

The Immunity of a Population That May Be Protective for Previously