Expectant parents with questions should talk to their doctor about the vaccine. To protect as many people as possible, infants get the hepatitis B vaccine immediately, before leaving the hospital, because the virus can be passed from an infected mother to the baby during birth and the vaccine is highly effective at preventing infection.
Even if a pregnant person has tested negative for hepatitis B, it is still critical to give the baby the birth dose because the virus can easily spread from surface contact. There is the possibility of receiving a false negative test result when screened, and some pregnant people become infected later in pregnancy - after being tested. Further, many adults may be unaware that they have the virus and transmit it to an infant after birth. Babies who receive the full vaccine series starting from birth have their chance of liver cancer reduced by 84%. If fewer people get vaccinated, hepatitis B will circulate at higher rates in American communities and the risk of contracting the virus will rise for everyone who does not receive the vaccine.
In Service,
The Office of Congresswoman Alexandria Ocasio-Cortez