World Immunization Week 2026

World Immunization Week promotes the protection offered by vaccines.

Frequently asked questions

When is World Immunization Week 2026?

World Immunization Week 2026 is on Friday, 24 April 2026.

What day of the week is World Immunization Week 2026?

It falls on Friday.

How is World Immunization Week calculated?

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