What type of antibody is produced first after the initial exposure to antigen?

Question

Quizplus · Accepted Answer

IgM is the first antibody produced by the body in response to an initial encounter with an antigen. It is produced by plasma cells in the spleen, lymph nodes, and bone marrow. It has a pentameric structure and is highly effective at agglutinating antigens. IgM is typically present for a short period before being replaced by other isotypes such as IgG.

What Type of Antibody Is Produced First After the Initial