 Complete the following phrase:  Chagas is endemic to 21 countries in continental Latin America: Argentina, Belize, Bolivia, Brazil, Chile, Colombia, Costa Rica, Ecuador, El Salvador, French Guiana, Guatemala, Guyana, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, Suriname, Uruguay, and Venezuela. The endemic area ranges from the southern United States to northern Chile and Argentina, with Bolivia 6.1, Argentina 3.6, and Paraguay 2.1 exhibiting the highest prevalence of the disease. In endemic areas, due largely to vector control efforts and screening of blood donations, annual infections and deaths have fallen by 67 and more than 73 respectively from their peaks in the 1980s to 2010. Transmission by insect vector and blood transfusion has been completely interrupted in Uruguay 1997, Chile 1999, and Brazil 2006, and in Argentina, vectorial transmission has been interrupted in 13 of the 19 endemic provinces. During Venezuelas 