What do my EBV test results mean?
The presence of VCA IgG antibodies indicates that an EBV infection has occurred at some time recently or in the past. The presence of VCA IgM antibodies and the absence of antibodies to EBNA mean that the infection has occurred recently. The presence of antibodies to EBNA means that the infection occurred in the past.
What do high EBV antibodies mean?
Some types of EBV antibodies are present in higher numbers during an active infection. Other EBV antibodies mean that you had an infection in the past. Depending on the type of antibodies your test shows, your healthcare provider can find out more about what is causing your illness.
What is convalescent EBV?
During convalescence, human leukocyte antigen (HLA)-restricted cytotoxic T lymphocytes maintain EBV under control by targeting the latently expressed Epstein-Barr nuclear antigen (EBNA)-3 protein. The histopathology will vary according to the clinical syndrome or disease caused by EBV.
What is a high viral load for Epstein-Barr?
Chronic high-load state was defined as the presence of >16,000 genome copies/mL whole blood on > or =50% of samples over at least 6 months.
What is EBV PCR blood test?
EBV PCR Blood Test The EBV (Epstein Barr) PCR Qualitative test is used as a screening for Epstein-Barr Virus. This test looks for the genetic material of the virus. PCR testing can be more sensitive than standard antibody testing for EBV.
When do EBV antibodies appear on the IgG test?
The EBV (Epstein Barr) Nuclear Antigen Antibodies, IgG test looks for a type of antibody which the body typically develops in response to Epstein-Barr Virus. EBNA antibodies usually appear 2-4 months after infection and persist for the life of the person.
What does an abnormal EBV test result mean?
An abnormal result means that the test has found antibodies to EBV in your blood. This means that you are currently infected with EBV or have been infected in the past. Like any lab test, false-positives and false-negatives can occur.
How is the EBV test used to diagnose mono?
The EBV test is used to diagnose infectious mononucleosis. It detects the presence of antibodies that the body makes to fight the infection. The monospot test is convenient, fast, and cheap, but less accurate. The EBV-specific antibody test is the gold standard, but results take longer, and it’s more expensive.
When do EBNA antibodies appear after an infection?
EBNA antibodies usually appear 2-4 months after infection and persist for the life of the person. This test is usually performed to establish a past infection with EBV. Epstein-Barr Virus is one of the most common viruses with as many as 95% of the people in the US having been exposed by the age of 40. In many people the virus causes no symptoms.