First notification on the presence of brucellosis in water buffalo (Bubalus bubalis) in Mexico by serological tests

African journal of microbiology research (Impact Factor: 0.54). 05/2012; 6(13):3242-3247.

ABSTRACT A cross-sectional study was conducted to determine the seroprevalence of brucellosis in water buffaloes (Bubalus bubalis) of three farms located in the south of Veracruz, México. Card test and rivanol were used in serial for detection of antibodies against Brucella spp. From a total of 565 buffaloes, 99 were tested and the overall seroprevalence of brucellosis was 13% by card test and 7% by rivanol. By farm, seroprevalence was 2.94% for farm 1. 4% for farm 2, and 12.5% for farm 3. Brucellosis seroprevalence showed an increasing trend with age, with adult cattle (>6 years) recording the highest seroprevalence (11.1%), but differences were not statistically significant (p>0.05). In two farms, buffaloes shared grazing land and water sources with bovine cattle, so 75 head were tested for brucellosis resulting negative. Because clinical signs suggestive of brucellosis were not observed, isolation was not attempted. This is the first known report on the presence of brucellosis in water buffalo in Mexico; thus, public awareness and further epidemiological studies of the disease in wildlife, livestock, and humans in the study area are of great importance.

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