Why do immunizations require two doses?
A) The first dose stimulates the effector cells only, and the second dose stimulates the memory cells only.
B) The first dose stimulates the primary immune response, and the second dose stimulates the secondary immune response.
C) In case the first dose is not enough to induce immunity, a second dose is given.
D) The first dose often is ineffective.
E) The first dose stimulates the innate immune response, and the second dose stimulates the adaptive immune response.

Question

Quizplus · Accepted Answer

The first dose of an immunization primes the immune system, initiating the primary immune response, while the second dose boosts the immune response, leading to a more robust and quicker secondary immune response. This process helps in developing long-term immunity.

Why Do Immunizations Require Two Doses