The vaccine against Hepatitis B prevents inflammation in the liver, hepatitis, caused by the B virus. It is an inactivated vaccine produced by genetic engineering composed of the recombinant surface antigen of the purified B virus and it is administered intramuscularly. It is found in SUS and in the private health system. The National Immunization Program (PNI), aiming to protect from vertical transmission (infection from mother to fetus), currently recommends four doses, at birth, 2, 4 and 6 months of age. It is found in isolated form and in the vaccines Pentavalente (in SUS), Hexavalente and Hepatitis A / B vaccine (in the private health system).
The Vaccine Observatory studies routine vaccines indicated for children under two years of age (except flu and yellow fever), considering the recommendations of the National Immunization Schedule of the National Immunization Program of the Ministry of Health.