WHAT IS IT?
Hepatitis B (Hep B) is a liver infection caused by the Hepatitis B virus (HBV). Up to 1.4 million people in the United States have chronic Hep B.
HBV infection in a pregnant woman poses a serious risk to her infant at birth. Transmission of Hepatitis B from mother to child can happen during a vaginal delivery or C-section. Without post exposure immunoprophylaxis, approximately 40% of infants born to HBV-infected mothers in the United States will develop chronic HBV infection. Approximately one-fourth of whom will eventually die from chronic liver disease.