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Background.  Hepatitis C virus (HCV) is an underappreciated cause of pediatric liver disease, most frequently acquired by vertical transmission (VT). Current guidelines that include the option of screening infants for HCV RNA at 1–2 months are based on data prior to current real-time polymerase chain reaction (PCR)-based testing. Previous studies have demonstrated VT rates of 4%–15% and an association with high maternal viral load. We evaluated HCV RNA in infants with HCV VT and assessed maternal risk factors in a prospective cohort in Cairo, Egypt.

Methods.  Pregnant women were screened for HCV from December 2012 to March 2014. For those with HCV viremia, their infants were tested at 12 months for HCV RNA using real-time PCR. Maternal risk factors assessed for HCV VT association included HCV RNA levels, mode of delivery, and maternal IL28B …