Usefulness of vaccines

March 7, 2022

Vaccines are one of the most important public interventions ever developed. Some diseases such as smallpox that used to kill millions of people have been eradicated while others are on the way to elimination including polio. Systems at global, regional, national and local levels have been developed around the world to ensure safe and effective delivery of immunization services. It is estimated that vaccines prevent up to 3 million deaths worldwide every year and many disabilities are averted.