Question

Antibody formed immediately after infection is-

• A. IgM
• B. IgG
• C. IgD
• D. IgE

Hint:

Focus on the sequence of antibody production during the immune response to infections.

Answer 1

The Correct Option is A

IgM is the first antibody produced in response to an infection, playing a vital role in the primary immune response. It is large in size, allowing it to form pentamers that enhance pathogen neutralization. IgG, the most abundant antibody, follows IgM and provides long-term immunity.