Epstein Barr Virus VCA IgG
What is EBV VCA IgG?
The test detects antibodies against Viral Capsid antigen (VCA ) of EBV. EBV causes mononucleosis, a disorder associated with fatigue, sore throat, fever, swollen lymph nodes & enlarged spleen. The virus is present in the saliva of the patients and is very contagious. Anti-VCA IgG are present in the acute phase of EBV infection & reaches at maximum at 2-4 weeks after onset of infection . The test can also be ordered in the absence of symptoms in immunocompromised person who has been in close contact with the infected person.
Why is EBV VCA IgG done?
The EBV-VCA test is performed when symptoms of mononucleosis appear without a positive mononucleosis test, including:
• Sore throat
• Swollen lymph glands
The test is also performed in pregnant women showing symptoms similar to flu.
Interpreting EBV VCA IgG results
A positive result in the VCA IgG test indicates a currently ongoing or a recent EBV infection.