Immunoglobulins, also known as antibodies, are essential components produced by the human body. Among the various types of immunoglobulins, IgG and IgM stand out as significant players in our immune response. These antibodies assist in assessing our internal state and identifying infections. By categorizing human immunoglobulin into five distinct structures, we can evaluate and understand the body's immune status accurately. Hence, the presence and activity of IgG and IgM assume a crucial role in mounting an effective immune response.
Immunoglobulin G, commonly known as antibody IgG, is predominantly found in the bloodstream and also present in other tissues. Its primary function is to provide protection to the body's immune system and safeguard against various infectious diseases, including measles. Typically, during pregnancy, the fetus acquires IgG antibodies from the mother, and after birth, it continues to produce IgG antibodies on its own for a certain period of time.
3. Macroglobulin or antibody IgM is the largest antibody in terms of molecular weight. It is primarily found in the bloodstream and is unable to cross the blood vessel wall. IgM holds significant diagnostic value for identifying bacteremia, hepatitis A, and other infectious diseases. Following an infection, the body rapidly produces IgM antibodies, which then gradually decrease or vanish. When the serum test reveals the presence of IgM antibodies in the blood of pregnant women, it may indicate the risk of intrauterine infection.





