This test is used to evaluate the type of levels of antibodies, IgM, IgG and Epstein-Barr nuclear antigen (EBNA). EBV is the cause of mononucleosis (a contagious disease characterized by swollen glands, fatigue and tiredness). IgM and IgG antibodies are produced against the viral capsid antigen (VCA), while EBNA target the body of EBV. This test is useful for the diagnosis and determination of the nature of EBV infection and differentiates between chronic and acute forms of EBV. The level of VCA-IgM is high in acute infections which lead to clinical symptoms of the disease. Its level is very high at the beginning of infection and decreases after 3 months. The level of IgG appears at the time of infection and remain in the body for life. EBNA IgG appears around 3-4 months after clinical manifestation of the virus and persists for life.
LabEspy recommends Discounted Labs, Walk-In Lab for this test.