Definition
1. Immunization or vaccination is inserting certain attenuated germs or toxins (vaccine) into human body by means of injecting or drinking (dropping into mouth) in order to increase body immunity against the disease.
2. Polio is a vaccine to prevent polio virus, given to a baby at the age 3 months or older by giving 3 drops of liquid vaccine in a pink or white color directly into the baby's mouth; usually given together with DPT vaccination. A complete Polio immunization is given 3 times. In National Immunization Week (PIN), polio immunization are given specifically for all toddlers in Indonesia at the same week (in certain regions are at the same month or day) in accordance to the given schedule.