World Immunization Week 2022

World Immunization Week promotes the protection offered by vaccines.

Frequently asked questions

When is World Immunization Week 2022?

World Immunization Week 2022 is on Sunday, 24 April 2022.

What day of the week is World Immunization Week 2022?

It falls on Sunday.

How is World Immunization Week calculated?

This observance runs for 7 days from its calculated start date each year.