What does EBV IgM negative mean?
If the VCA-IgM is negative but VCA-IgG and an EBNA antibody are positive, then it is likely that the person tested had a previous EBV infection. If an individual is asymptomatic and negative for VCA-IgG, then that person has likely not been previously exposed to EBV and is vulnerable to infection.
What does a positive EBV AB VCA IgG mean?
The EBV test is also known as “EBV antibodies.” It’s a blood test used to identify an EBV infection. The test detects the presence of antibodies. Antibodies are proteins that your body’s immune system releases in response to a harmful substance called an antigen.
When does EBV IgG become positive?
The presence of VCA IgG antibodies indicates infection sometime in the past. Antibodies to EBNA develop 6 to 8 weeks after primary infection and are detectable for life.
Is Epstein-Barr related to chronic fatigue syndrome?
The Epstein-Barr virus (EBV) is a member of the herpesvirus family and one of the most common human viruses. It has long been tentatively connected to chronic fatigue syndrome (ME/CFS), with some researchers saying it’s an important causal factor while others say it’s not involved with this disease at all.
Does Epstein-Barr flare up?
Once you’re infected with EBV, you carry the virus — usually in a dormant state — for the rest of your life. Sometimes, however, the virus may reactivate. When this happens, you’re not likely to become ill. Rarely, reactivated EBV may cause illness in people who have weak immune systems, such as those who have AIDS.
What illnesses does Epstein-Barr virus cause?
EBV is best known for causing mononucleosis, but less often it can lead to other diseases, including:
- Ear infections and diarrhea in children.
- Guillain-Barre syndrome.
- Certain cancers, including Burkitt’s lymphoma and cancers of the nose and throat.