Seroprevalence of cytomegalovirus infection among pregnant women in Eastern Iran.

Human cytomegalovirus (CMV) is the most common cause of congenital infection, with morbidity and mortality at birth.1–5 Usually, there are no clinical symptoms for CMV during primary infection, reactivation, and re-infection with a different CMV strain, but infected individuals may transmit the virus via body fluids such as saliva, blood, cervical secretion, semen, 1–4 and urine. The risk of intrauterine infection largely depends on the time of maternal infection during pregnancy – it is lowest at the time of conception, and is increased in the third trimester.4 Some studies concluded that CMV infection lead to miscarriage and stillbirth.4,5