Which of the following is associated with passive immunity?
A) booster shot of vaccine
B) exposure to an antigen
C) infusion of weakened viruses
D) passage of IgG antibodies from a pregnant mother to her fetus

Question

Quizplus · Accepted Answer

Passive immunity is the transfer of antibodies from one individual to another. In this case, the passage of IgG antibodies from a pregnant mother to her fetus provides temporary protection to the newborn until their immune system develops. The other options (A, B, and C) are associated with active immunity, where the individual's immune system produces their own antibodies in response to an antigen (vaccine or exposure to the actual pathogen).

Which of the Following Is Associated with Passive Immunity