Fig. 2

a Three omission thresholds—0% = yellow, 5% = orange and 10% = red—of the final MaxENT model projected over Brazil, indicating suitability for VACV transmission. Black points show all outbreaks used to generate model, b three thresholds of the final MaxENT model projected onto Colombia. The outlines of VACV municipalities (Medina, Valaparaíso and Puerto Salgar) or departments (Casanare and Santander) are outlined in black, c livestock densities throughout Brazil and Colombia. Values represent cattle head densities (values per square kilometer). Country totals are adjusted to FAOSTAT values in 2006