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Epstein-Barr Virus Antibody
Aka: Epstein-Barr Virus Antibody, Epstein-Barr Viral Capsid Antigen, Epstein-Barr Virus Nuclear Antibody, Viral Capsid Antigen, IgM Viral Capsid Antigen, IgG Viral Capsid Antigen, EBV IgM, EBV IgG, EBV Nuclear Antibody, xIgM VCA, xIgG VCA, xEBNA
- See Also
- Mononucleosis
- Mononucleosis-Like Syndrome
- Heterophil Antibody Test (Monospot Test)
- Indications
- Suspected Mononucleosis with negative heterophile tests
- Mononucleosis-Like Syndrome
- Physiology
- IgM Viral Capsid Antigen (xIgM VCA or EBV IgM)
- Present at onset of symptoms
- Persist for 4-8 weeks after onset
- IgG Viral Capsid Antigen (xIgG VCA or EBV IgG)
- Present early in symptom course
- Persist life long
- Epstein-Barr Virus Nuclear Antibody (xEBNA)
- Suggests past infection
- Not present until 6-8 weeks after symptom onset
- Interpretation
- Acute phase antibodies: xEA, xIgM VCA
- Convalescent Antibody: xIgG VCA
- Recovered State: xIgG VCA, xEBNA