Synonym(s):
EBV VCA IgG, EBV VCA IgG Antibody, EBV Viral Capsid Ag IgG, EBV VCA IgM, EBV VCA IgM Antibody, EBV Viral Capsid Ag IgM, EBV Ea IgA, EBV Ea IgA Antibody, EBV Early Antigen IgA, EBV VCA IgA, EBV VCA IgA Antibody, EBV Viral Capsid Ag IgA
Epstein-Barr virus VCA IgM Epstein-Barr virus VCA IgG Epstein-Barr virus VCA IgA Epstein-Barr virus EA IgA
3 – 5 mL plain blood. (a) To diagnose acute infection, send single sample for EBV VCA IgM and second serum taken 10 – 14 days later if indicated. (b) To diagnose previous infection, send single sample for EBV VCA IgG. (c) To screen and aid in the diagnosis of nasopharyngeal carcinoma (NPC), send blood for EBV VCA IgA and EBV EA IgA.
Refrigerate samples if delay in transporting to laboratory is anticipated. Do not freeze.
EBV VCA IgM & IgG: Chemiluminescent Microparticle Immunoassay
EBV VCA IgA & EA IgA: Immunofluorescence assay
Acute infection: EBV VCA IgM positive or paired sera showing seroconversion Previous (latent) infection: EBV VCA IgG positiveEBV VCA IgA: Negative or Positive (Titre) EBV EA IgA: Negative or Positive (Titre)
EBV VCA IgM/IgG : <1 – 4 daysEBV VCA IgA : <1 - 7 days EBV EA IgA : <1 - 7 days
EBV VCA IgM/IgG : Tuesday and Friday
EBV VCA IgA : Wednesday morning
EBV EA IgA : Wednesday morning
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