Vaccination Week in the Americas (VWA)

From 23 to 30 April 2022, the Pan American Health Organization, together with the countries and territories of the Region of the Americas and its partners, will celebrate the 20th annual Vaccination Week in the Americas (VWA) and the 11th World Immunization Week (WIW) under the call to action “Are you fully vaccinated? Get all your shots."

Current Campaign: Vaccination Week in the Americas 2022

The history of VWA dates to a 2002 proposal by the Ministers of Health of the Andean Region, following the last endemic measles outbreak in the Americas. This proposal called for a coordinated vaccination effort across national borders to reach vulnerable populations, put an end to the outbreak, and prevent future outbreaks. Today, the Region of the Americas is facing new measles outbreaks, after having been declared free of this disease in 2016.

Every year as part of VWA, more than 40 countries and territories in the Americas come together to raise awareness on the importance of immunization and vaccinate their populations, making a special effort to reach people who may not have regular access to health services, including indigenous peoples, migrants, border populations, and people living in urban fringes. VWA has been a key driver of immunization in the Americas, resulting in more than 1 billion people being vaccinated against a range of diseases since 2002.

This page contains planning materials from the current campaign, as well as materials and other information from past years. 


 Vaccination Week Through the Years

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