Why Do Immunizations Require Two Doses

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 isn't 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.

Correct Answer:

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Access For Free