Vaccination schedule

A vaccination schedule is a series of vaccinations, including the timing of all doses, which may be either recommended or compulsory, depending on the country of residence.
A vaccine is an antigenic preparation used to produce active immunity to a disease, in order to prevent or reduce the effects of infection by any natural or “wild” pathogen. Vaccines go through multiple phases of trials to ensure safety and effectiveness. World Health Organization-guided childhood vaccine schedules protect against 30 infectious diseases, and following them is crucial to prevent risks to children and the community, having saved over 154 million lives in the past 50 years.