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Risk factors for brucellosis seropositivity of goat herds in the Mexicali Valley of Baja California, Mexico



A case-control study was conducted in the Mexicali Valley to identify risk factors for goat-herd seropositivity for Brucella melitensis. Nineteen case herds (≥2 positive results with the 8% rose bengal plate test (RBT)) and 55 control herds (zero positive results in RBT), matched for herd size and geographic location, were enrolled. Conditional logistic regression was used to construct a multivariable model of the odds of seropositivity using variables assessed in a questionnaire administered to goat ranchers. The final model for herd seropositivity included increased risk from importation of goats from other Mexican states, the presence of La Mancha breed does, and the presence of does born outside the herd. Increasing herd size was also highly significant. In addition, a significant positive association was found between the presence of seropositive dogs (as assessed by RBT) and seropositive goats on the same ranch.ID: 6662; Accession Number: 19992203465. Publication Type: Journal Article. Language: English. Number of References: 13 ref. Subject Subsets: Veterinary Science; Veterinary ScienceSource type: Electronic(1)

Topics: antibodies--bacterial diseases--brucellosis--epidemiology--risk factors--Mexico--Brucella melitensis--goats--Capra--Bovidae--ruminants--Artiodactyla--mammals--vertebrates--Chordata--animals--ungulates--eukaryotes--Brucella--Brucellaceae--Gracilicutes--bacteria--prokaryotes--North America--America--Developing Countries--Threshold Countries--Latin America--OECD Countries--bacterial infections--bacterioses--Parasites, Vectors, Pathogens and Biogenic Diseases of Animals (LL820) (Discontinued March 2000)
DOI identifier: 10.1016/s0167-5877(98)00097-x
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Provided by: IslandScholar
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