Detection of reactive canines to Leptospira in Campeche City, Mexico.

Leptospira reactivity in stray and household dogs in Campeche as well as associated risk factors to the seropositivity in household dogs have been herein determined. The survey included 323 dogs, 142 of which were stray dogs and 181 household dogs. Nine Leptospira interrogans serovars were tested by the microagglutination test. Reactivity was 21.3 % (69/323), 17.2 % corresponded to household dogs and 26.7 % to stray dogs. Leptospira Canicola (29 %), Leptospira Hardjo (22.58 %), and Leptospira Icterohaemorrhagiae (16.12 %) were the most common serovars reacting against the serum of household animals, while Leptospira Canicola (15.78 %), Leptospira icterohaemorrhagiae (13.15 %), and Leptospira Pomona (7.89 %) were those reacting in stray dogs. Results showed that all dogs have been in contact with different Leptospira serovars and outdoor exposure is the main infection risk factor.