The National Programme on Immunization recognises the following for the routine immunisation of Children in Nigeria: BCG (Bacili Calmette Guerin), a vaccine against tuberculosis; OPV (Oral Polio Vaccine), a vaccine against poliomyelitis; DPT combination vaccine against diphtheria, pertussis, tetanus; Hepatitis vaccine for hepatitis A and B; Measles vaccine; Yellow fever vaccine and supplemental vitamin A. According to the Federal Ministry of Health, a child is only considered fully vaccinated when they have received the following on their appropriate schedule.