Cytomegalovirus IgG & IgM, Serum

The Cytomegalovirus (CMV) IgG & IgM test is a blood test used to detect antibodies produced by the immune system in response to Cytomegalovirus infection. CMV is a common virus belonging to the herpesvirus family and can infect people of all ages. The test measures two types of antibodies- IgM and IgG. IgM antibodies usually indicate a recent or active infection, while IgG antibodies suggest past exposure and the development of immune memory. This test helps determine whether a CMV infection is recent, ongoing, or occurred in the past.

Who Should Get This Test Done?

This test may be recommended if individuals:

●     Have symptoms of a viral infection, such as fever, fatigue, sore throat, swollen lymph nodes, or prolonged flu-like illness without a clear cause.

●     Are pregnant or planning a pregnancy and require evaluation for Cytomegalovirus (CMV) infection.

●     Have a weakened immune system due to illness, immunosuppressive medications, or other medical conditions.

●     Are undergoing or have undergone organ or stem cell transplantation and require CMV monitoring.

●     Have unexplained liver function abnormalities, known exposure to CMV, or require assessment for congenital CMV infection during pregnancy.

Why Consider This Test?

The Cytomegalovirus IgG & IgM test helps identify whether a person has been exposed to CMV and whether the infection is recent or occurred in the past. This information is particularly important during pregnancy, as a primary CMV infection can pose risks to the developing fetus. In immunocompromised individuals, CMV infection may lead to serious complications affecting the eyes, lungs, liver, or gastrointestinal tract. Early detection can support timely medical management and appropriate monitoring.

More Information About the Test

Cytomegalovirus belongs to the herpesvirus family and remains in the body after the initial infection, usually in an inactive state. While it rarely causes serious illness in healthy people, it can become active again under certain conditions. Measuring both IgG and IgM antibodies provides a broader picture of the body’s immune response to CMV and is often used alongside clinical findings and other laboratory investigations when a detailed assessment is needed.

Other Names

●     CMV IgG & IgM Antibody Test

●     Cytomegalovirus Antibody Profile

●     CMV Serology Test

●     Anti-CMV IgG and IgM

●     Cytomegalovirus Serological Test

●     CMV Antibody Screening