The World Health Organization (WHO) recommends that all infants receive the hepatitis B vaccine as part of their routine immunization schedule. Additionally, unvaccinated adults who are at high risk for HBV infection, such as healthcare workers, individuals with multiple sexual partners, and people who inject drugs, should also be vaccinated. Neonates born to HBV-infected mothers should receive the vaccine within 24 hours of birth, along with hepatitis B immunoglobulin (HBIG) if available.
