An Observational Study of Hepatitis C Virus in Pregnancy

Inclusion Criteria:

   1. Singleton pregnancy

   2. An HCV antibody positive screen (case) measured using two FDA-approved ELISA tests,
   the Abbott Architect version 3.0 system and the Ortho HCV 3.0.

   3. Gestational age at screening no later than 23 weeks and 6 days, and gestational age at
   enrollment no later than 27 weeks and 6 days, based on clinical information and
   evaluation of the earliest ultrasound as described below.

Exclusion Criteria:

   1. Planned termination of pregnancy

   2. Known major fetal anomalies or demise

   3. Intention of the patient or the managing obstetricians for the delivery to be outside
   a MFMU Network center, unless special provisions are made to insure infant follow-up
   at two and 18 months of age.

   4. Participation in this study in a previous pregnancy.

   5. Unwilling or unable to commit to 18 months of follow-up for HCV positive infants