World Immunization Week
World Immunization Week is held on April 24. This event in the third decade of the month April is annual.
World Immunization Week – celebrated in the last week of April (24 to 30 April) – aims to promote the use of vaccines to protect people of all ages against disease. Immunization saves millions of lives every year and is widely recognized as one of the world’s most successful and cost-effective health interventions.