Consider a community in which the vaccination rate for measles is 99 percent.Ryan,a 2-year-old with leukemia,has not received the measles vaccination because of his immunocompromised status.Ryan is unlikely to get measles because

Question

Quizplus · Accepted Answer

The best explanation is that there is substantial herd immunity in Ryan's community. Herd immunity is the concept that when a high percentage of a population is vaccinated against a disease, even those who are not vaccinated are protected because the disease is unlikely to spread. In this scenario, with a vaccination rate of 99 percent, there is likely a high level of herd immunity in the community, making it unlikely for the measles virus to spread to individuals like Ryan who are not vaccinated. The other answer choices are incorrect: A is incorrect because measles has not been completely eradicated; B is incorrect because antibodies from Ryan's mother would not provide adequate protection against measles; and D is incorrect because children with leukemia are actually at higher risk for severe complications from measles.

Consider a Community in Which the Vaccination Rate for Measles