<prompt> 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 immediatelyWait 6 months and obtain another titer on the babyObtain an anti-CMV lgM titer from the motherObtain an anti-CMV lgM titer from the baby  <response>: Clinical manifestations of cytomegalovirus CMV infection may not be readily apparent at bih. Thus, in a newborn infant with a 1:32 titer of CMV, it is necessary to determine whether the antibodies were passed transplacentally from the mother these antibodies would be IgG or produced by the fetus in response to an in utero infection lgM. A newborn infant who is infected excretes large numbers of virus paicles in the urine and, therefore, places other neonates at risk for contraction CMV disease. 