Epstein Barr Virus (EBV-VCA) IgM Antibody

This test measures the levels of IgM antibodies specific to the Epstein-Barr Virus (EBV) - a type of herpes virus, in your blood. It helps determine if you have had a recent or current infection with EBV. Antibodies against viral capsid antigen (Anti-VCA) IgM appear early in EBV infection and usually disappear within four to six weeks. EBV causes Infectious mononucleosis, a disorder associated with fatigue, sore throat, fever, swollen lymph nodes & enlarged spleen. The virus is present in the saliva of the patients and is very contagious. The test can also be ordered in the absence of symptoms in an immunocompromised person or pregnant woman who has been in close contact with EBV infected person. This test may also be done to assess the risk of complications associated with EBV infection and to screen for increased susceptibility to future EBV infections.