A newborn baby is defined as an infant from the time the fetus is delivered from the mother to tie the umbilical cord until 28 days after birth. Newborns need to be vaccinated with Hepatitis B vaccine (first dose) and BCG vaccine. Newborns are required to receive Hepatitis B vaccine (first dose) and BCG vaccine in the hospital within 24 hours of birth. Vaccination may be postponed at the discretion of some premature infants, infants with severe infections, severe congenital diseases, congenital immunodeficiencies, impaired liver function, and other abnormal conditions. Hepatitis B vaccine (second dose) is required after 30 days of age. After the newborn is discharged from the hospital, you can go to the local immunization-related department to get a record book of children’s immunization and receive regular vaccinations according to the vaccination schedule to prevent infectious diseases.