What does EBV equivocal mean?

What does EBV equivocal mean?

Equivocal Result: “Borderline result” – suggest repeat specimen be obtained in 10-21 days.

What is Epstein-Barr virus VCA IgA?

3. A positive serum IgA VCA titer indicates previous repeated infection by the virus or frequent reactivation of latent EBV in B cells. This has been used as a screening tool to identify subjects at high risk of NPC,4,5 as well as being a diagnostic criteria for undifferentiated NPC.

How do you interpret Epstein Barr results?

Understanding the results

1. If the antibody called VCA IgG is present, the Epstein-Barr virus has occurred at some time recently or in the past.
2. If the VCA IgM antibody is present without the Epstein-Barr nuclear antigen (EBNA), the virus is likely to be currently active or occurred very recently.

What does EBV VCA IgG detected 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 are normal EBV numbers?

Optimal Result: 0 – 17.9 U/mL. EBV-VCA, IgG is an antibody (protein) that is produced by the body in an immune response to an Epstein-Barr virus antigen. EBV stands for Epstein-Barr virus. Epstein-Barr virus is a virus that typically causes a mild to moderate illness.

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 considered a high EBV viral load?

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.

Does Epstein-Barr weaken immune system?

EBV infection can affect a person’s blood and bone marrow. The virus can cause the body to produce an excessive number of white blood cells called lymphocytes (lymphocytosis). EBV can also weaken the immune system, making it more difficult for the body to fight infection.

What is a normal EBV VCA IgG level?

Optimal Result: 0 – 17.9 U/mL. EBV-VCA, IgG is an antibody (protein) that is produced by the body in an immune response to an Epstein-Barr virus antigen.