World Immunization Week 2022 – 24 to 30 April

For more than two centuries, vaccines have helped keep people healthy—from the very first vaccine developed to protect against smallpox to the newest vaccines used to prevent severe cases of COVID-19. Since then, families and communities have entrusted vaccines to protect their loved ones. But the value of vaccines is measured by more than the number of doses given.

Each April, World Immunization Week brings together people from around the world to highlight the importance of vaccines and how they protect people of all ages against many diseases, giving us the opportunity to pursue a life well-lived. This year’s campaign comes at an especially critical time as the COVID-19 pandemic has disrupted essential health services, including routine immunization, setting back progress by more than a decade. Unfortunately, millions of people are still missing out on the life-saving benefits of vaccines, making it urgent to catch up and reach those who have been missed.

World Immunization Week is supported by the World Health Organization and a wide range of partners, including Gavi, the Vaccine Alliance, UNICEF, the Bill & Melinda Gates Foundation and many more. Visit WHO’s World Immunization Week campaign page to learn more.