The serum of a newborn infant reveals a 1:32 cytomegalovirus (CMV) titer. The child is clinically asymptomatic. Which of the following courses of action would be advisable?
Repeat the CMV titer immediately Wait 6 months and obtain another titer on the baby Obtain an anti-CMV lgM titer from the mother Obtain an anti-CMV lgM titer from the baby