Congenital cytomegalovirus (cCMV) infection is a leading cause of childhood hearing loss. It is estimated that 85% to 90% of newborns infected with cCMV will not show any symptoms at birth. Of those newborns with cCMV infection who are asymptomatic at birth, 10% to 15% will go on to develop long-term symptoms, including vision loss, hearing loss, and developmental delays.
