Test: Vaccines Video #1 of 8

The Emergent Immune System

Select the correct answer below.

Throughout human history Herd Immunity has demonstrated

A. the health of sheep and cattle

B. the benefit that vaccinated children receive from the unvaccinated

C. the benefit that unvaccinated children receive from the vaccinated

D. the strength of a population having survived a disease threat over time

E. immune building from 10k races