Active Immunity Typically Develops from _______

Question

Active immunity typically develops from _______.
A) exposure to antigens and production of memory cells
B) breastfeeding
C) injection of gamma globulin
D) activation of complement

Accepted Answer

Active immunity results from an individual being exposed to antigens and producing memory cells that can recognize and respond to those antigens in the future. This is typically achieved through natural infection or vaccination. Breastfeeding, injection of gamma globulin, and activation of complement do not result in the development of active immunity.