Immunization saves between 2 and 3 million lives each year. Vaccines are relatively inexpensive and extremely powerful weapons against disease, disability and death. They protect people of all ages, from babies to senior citizens, against life-threatening diseases.
For the first time ever, from 21-28 April 2012, countries across the world are participating in a World Immunization Week sponsored by the World Health Organization, to raise awareness on how immunization saves lives and to make sure that the poorest and hardest to reach communities get the vaccinations they need to protect their health.