Epstein-Barr Virus Early Antigen (EA) Antibodies IgG (Serum)
The study is aimed at detecting IgG class antibodies to the EBV early antigen (EA).
Used for assessing virus activity and detecting infection reactivation.
Prescribed for symptoms: chronic fatigue, prolonged low-grade fever, enlarged lymph nodes.
Applied for monitoring chronic or latent EBV infection and assessing the immune system's reaction to the virus.
What the test assesses:
– Presence of IgG antibodies to the EBV early antigen (EA IgG).
– Activity or reactivation of the viral infection.
– Intensity of viral activity in chronic disease course.
Biomaterial: Venous blood (serum)
– Submit fasting (8-12 hours after the last meal).
– Drinking still water is allowed.
Medications:
– Antiviral medications and immunomodulators may affect antibody levels.
– Immunoglobulins can distort indicators.
– The doctor should be informed about taking all medications.
Recommended for testing:
– When active or reactivated EBV infection is suspected.
– With immune disorders, decreased body protective functions.
– With prolonged nonspecific complaints, low-grade fever, asthenia."
– Positive result (EA IgG detected): indicates EBV reactivation or active infection phase; may be observed in chronic infection.
– Negative result (EA IgG not detected): no signs of active or reactivated infection; does not exclude latent EBV carriage.
Important — for precise determination of the infection stage, combination with VCA IgM, VCA IgG, and EBNA IgG is recommended.
