QUESTION My 26 year-old patient is planning her first pregnancy in the comi
ng month. She works in a day-care centre. Recently, two cases of cytomegalo
virus (CMV) infection were diagnosed in her class. What tests should she ha
ve before and during the pregnancy, and how should I care for her?
ANSWER Cytomegalovirus infection, the most common congenital viral infectio
n in humans, carries high risk of long-term morbidity and mortality. Serone
gative mothers of children in day-care centres are at as high risk of acqui
ring the infection as day-care workers themselves. The immune status of at-
risk patients should be evaluated as pregnancy progresses. Evidence of feta
l infection does not necessarily mean fetal disease or damage. With a prima
ry-infected fetus, termination of pregnancy might be discussed with the par
ents.