According to guidelines developed by the World Health Organization (WHO

What is completely immunized child?

A child can be defined as fully immunized if they have received a Bacillus Calmette-Guerin (BCG) vaccination; three doses of the Diphtheria, Pertussis, and Tetanus (DPT) vaccine; three doses of the polio vaccine; and a measles vaccine, and should be fully immunized within the first year of life.

What does full immunization mean?

According to the WHO guideline [27], “complete or full immunization” coverage is defined as a child has received a BCG vaccination against tuberculosis; three doses of DPT vaccine to prevent diphtheria, pertusis, and tetanus (DPT); at least three doses of polio vaccine; and one dose of measles vaccine.