Infection with Epstein-Barr virus (EBV) results in the development of virus-specific antibodies. The pattern of these antibodies helps to stage the illness . EBV-VCA (IgG) Ab
A
Appears 2 weeks to several months after onset and is present more often in atypical cases of infectious mononucleosis
B
Appears 3 to 4 weeks after onset; titers correlate with severity of clinical illness
C
Arises early in the course of the illness; detectable titers persist a lifetime
D
Appears late in the course of the disease and persists a lifetime