Leticia, Colombia, 30 April 30 2016 (PAHO/WHO) - The city of Leticia, Colombia, located in the Amazon region near the border with Brazil and Peru, was the site for a tri-national launch of Vaccination Week in the Americas 2016. Currently in its 14th year, Vaccination Week in the Americas is promoted by the Pan American Health Organization (PAHO) and seeks to ensure that the benefits of vaccines reach the widest possible number of people in the region. Read more in Spanish