Perfil sorologico da leptospirose bovina em regioes do Estado de Sao Paulo

2,761 bovine sera samples from different breeds and age varying between 6 months and 10 years old, proceeding from different regions of Sao Paulo and Parana States, were studied by microscopic-agglutination test (MAT). Of these 1,914 (69.32%) had information about sex and 1,201 (43.50%) about animal exploration. There were 1,795 (93.78%) females and 119 (6.22%) males, and 663 (55.20%) beef cattle and 538 (44.80%) dairy cattle. Tests showed that 1,258 (45.56%) were positive to the following serovars: wolffi (n= 888; 70.59%), hardjo (n= 850; 67.57%), pyrogenes (n= 351; 27.90%), canicola (n= 326; 25.91%), bratislava (n= 289; 23.97%), pomona (n= 136; 10.81%), castellonis (n= 52; 4.13%), gryppotyphosa (n= 70; 5.56%), icterohaemorrhagiae (n= 50; 3.97%), copenhageni (n= 42; 3.34%), tarassovi (n= 40; 3.18%) and djasiman (n= 31; 2.46%). The results showed that dairy cattle were more reactive (24.06%) than beef cattle (20.98%), and females (47.54%) reacted more than males (1.25%). The most prevalent serovars were wolffi , hardjo , pyrogenes , and canicola .