Intestinal protozoan infection in wild black howler monkeys (Alouatta caraya) rescued during the construction of a hydroelectric dam, and its impacts on wildlife rescue programs - Genoy-Puerto, Alexander; Calvi, Thalita Simões; Del Rio do Valle, R; Catão-Dias, José Luiz; Matushima, Eliana Reiko (Annual International Conference of the Wildlife Disease Association, 2010)