Epstein-Barr Virus Reactivation and Immune Response Blood Test
Epstein-Barr Virus Reactivation and Immune Response Blood Test
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The Epstein-Barr Virus (EBV) reactivation and immune response test measures antibodies (IgG and IgM) associated with EBV components and EBV DNA using PCR testing.
The presence of antibodies can reveal if someone has had a recent or past infection, as well as provide insight into your body’s immune response, while the presence of EBV DNA in the blood is an indication of active EBV replication and can be used to determine the viral load. Combining these two tests allows the assessment of EBV reactivation and to differentiate between active, recent and past infections.
Epstein-Barr Virus (EBV) is a ubiquitous virus known to establish lifelong, latent infection in the majority of the world's population. Active, replicating EBV has been documented in Long Covid and ME/CFS patients, and some studies have found that ME/CFS patients have higher rates of active EBV than the general population.