World Immunization Week
April 24 @ 8:00 am - April 30 @ 5:00 pm
World Immunization Week is celebrated annually during the last week of April (April 24–30) to promote vaccine use, protecting people of all ages against diseases. Led by the WHO, the 2025 theme is “Immunization for All is Humanly Possible,” highlighting vaccines’ role in saving over 154 million lives in 50 years.