Fig 1. Map of Colombia showing the six departments where patient samples were collected.

A total of 115 samples were collected from Nariño (N = 35), Valle del Cauca (N = 35) and Cordoba (N = 20) between 2008 and 2009, and from Amazonas (N = 21), Guaviare (N = 2) and Meta (N = 1) between 1999 and 2007. Blue dots indicate the specific sites where the samples were collected in each department. Map adapted from http://d-maps.com/carte.php?num_car=15145&lang=es.