The presence of which of the following indicates a current infection rather than a previous infection or vaccination?
A)IgA
B)IgG
C)IgM
D)IgD
E)IgE

Question

Quizplus · Accepted Answer

IgM is the only antibody produced during the primary immune response to an antigen. It appears early in the infection and indicates a current infection rather than a previous infection or vaccination. IgA, IgG, IgD, and IgE can indicate both current and previous infections or vaccinations.

The Presence of Which of the Following Indicates a Current