In April 2011 during the launch of the 9th Vaccination Week in the Americas, hundreds of children were immunized against vaccine preventable diseases, on the binational border between Bolivia and Peru. The tenth anniversary of Vaccination Week in the Americas (VWA) will be celebrated from 21-28 April 2012. VWA is an extraordinary effort led by the countries and territories of the Region to advance equity and access to vaccination. VWA is an extraordinary effort led by the countries and territories of the Region to advance equity and access to vaccination. VWA activities strengthen the national immunization programs in the Americas by reaching out to populations with little access to regular health services, such as those populations living in urban fringes, rural and border areas and in indigenous communities. Since its inception in 2003, more than 365 million individuals of all ages have been vaccinated during campaigns conducted under the framework of VWA.