Immunization is the process whereby a person is made immune or resistant to an infectious disease, typically by the administration of a vaccine. Vaccines stimulate the body’s own immune system to protect the person against subsequent infection or disease.
Immunization protects against diseases like measles, mumps, rubella, hepatitis B, polio, diphtheria, tetanus and pertussis (whooping cough), chicken pox etc.
The following vaccinations and schedules are recommended by the Federal Government of Nigeria’s Health Ministry (National Immunization Schedule). Please note that some variations are acceptable and that changes in recommendations often occur as new vaccines are developed and approved.
National Immunization Schedule

When What
At Delivery VITAMIN A to Mother
At Birth BCG – POLIO0 – HBV1
6 Weeks DPT1 – POLIO1 – HBV2
10 Weeks DPT2 – POLIO2
14 Weeks DPT3 – POLIO3 – HBV3
15 Months VITAMIN A2

BCG vaccine prevents against Tuberculosis.
DPT vaccine prevents against Pertussis (whooping cough), Diphtheria (causes the throat to swell hence preventing breathing) and Tetanus.
HBV vaccine prevents against the Hepatitis B Virus infection (causes liver damage).
Measles vaccine prevents against Measles infection.
Polio vaccine prevents against Wild Polio Virus (Polio).
Yellow Fever vaccine prevents against Yellow Fever Virus infection