25 Jul
Intrauterine or congenital CMV infections occur in 0.5 to 2.2% of all live births. Symptomatic congenital infections usually occur in infants born to nonim-
mune mothers who have primary infections duing pregnancy. Latency and reactivation of CMV influence the interpretation
of serological results. A single positive CMV influence the interpretation of serological results. A single positive CMV IgG result is an indication of present or past infection. The presence of CMV IgM suggests a recent CMV exposure but does not differentiate between primary infection and reactivation.