EBV capsid antigen IgA positivity is usually a sign of a recent EBV infection or a previous EBV infection, but further testing is needed to clarify the specifics. Positive EBV capsid antigen IgA antibody is a marker of EBV infection, which may be a current infection or a previous infection, and further serologic testing is required, and if there is a large amount of IgM antibody in the serum, it is a recent infection. Nasopharyngeal cancer, thyroid cancer, chronic inflammation of the nasopharynx, infectious mononucleosis (an acute lymphoproliferative disorder that develops in adolescents after their first infection with EBV), African childhood lymphoma, and Hodgkin’s disease (which is a distinctive type of lymphoma that is malignant and occurs in young adults) have been associated with EBV infection. If you are positive for EBV capsid antigen IgA, it is recommended that you consult a doctor to determine the cause of the disease and to administer the appropriate treatment or therapy.