Serosurvey for antibodies against Brucella abortus and Leptospira interrogans in pampas deer from Brazil

A survey for antibodies against Brucella abortus, and Leptospira interrogan s was conducted on 17 pampas deer (Ozotocerus bezoarticus) from Pantanal Ma togrossense (State of Mato Grosso do Sul, Brazil) and on 24 pampas deer fro m Parque Nacional de Emas (State of Goias, Brazil). Antibodies against B. a bortus were detected by plate ag glutination, rose Bengal, and complement f ixation tests, antibodies against Leptospira interrogans were detected by t he microscopic agglutination test. All sera were negative for B. abortus an tibodies and all deer sera from Parque Nacional de Emas were negative for L . interrogans antibodies. Four (24%) of 17 sera from Pantanal Matogrossense were positive for L. interrogans serovar (n = 2) hardjo, wolffi (n = 1) an d mini (n = 1). While these diseases do not appear to be of major importanc e to the health status of Pampas deer, it appears that deer are reservoir f or leptospirosis in one of the study areas.