As long as you carry the virus, you can infect others. All of these contacts should be examined by a doctor. If they are not yet infected, they should be vaccinated. Pregnant women who are carriers may pass hepatitis B on to their babies around the time of birth. They may also pass it on during the first few years of life.
Most infected infants become carriers.
A pregnant woman should have a test for hepatitis B at her first visit to a doctor. If she is a carrier, the infant can be vaccinated at birth to protect against infection. When you can no longer pass the infection on to others. Return for follow-up visits as your doctor or clinic asks. Tell people you have had sex with during the past 6 months.