EBV-IgG

EBV-IGG Test

The EBV IgG test detects immunoglobulin G (IgG) antibodies against Epstein-Barr virus (EBV). EBV is a very common virus and is the primary cause of infectious mononucleosis.

EBV IgG antibodies can remain detectable for many years after infection. Therefore, a positive result generally indicates previous exposure to EBV, rather than necessarily indicating an active infection.

Depending on the specific EBV IgG antibody being tested, such as VCA IgG or EBNA IgG, the result can provide different information about the stage of infection. Healthcare providers may therefore interpret EBV IgG together with EBV IgM and other EBV antibody markers when a recent infection is suspected.

This Test is Recommended for Individuals:

• Individuals being evaluated for suspected EBV infection
• Patients with symptoms suggestive of infectious mononucleosis
• People experiencing unexplained prolonged fatigue, fever, or swollen lymph nodes
• Individuals with sore throat or other symptoms where EBV is suspected
• Patients requiring assessment of previous EBV exposure
• Individuals undergoing further EBV antibody testing to determine the stage of infection

FAQs

1. What does a positive EBV IgG result mean?
A positive EBV IgG result usually indicates that the person has been exposed to EBV at some point in the past. IgG antibodies can remain detectable for a long time after infection.

2. Does EBV IgG confirm an active infection?
No. A positive IgG result alone does not confirm an active or recent infection. EBV IgM and other EBV antibody markers may be needed to determine whether an infection is recent.

3. What is the difference between EBV IgG and EBV IgM?
EBV IgM is generally associated with a recent or acute infection, while EBV IgG antibodies usually develop during infection and can persist long-term. The exact interpretation depends on which EBV IgG antibody is measured and the overall antibody pattern.