Risk factors for brucellosis seropositivity of goat herds in the Mexicali Valley of Baja California, Mexico
| Autor: | Sharon K. Hietala, Ian A. Gardner, Jorge Hernández de Anda, Andrea B. Mikolon |
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| Rok vydání: | 1999 |
| Předmět: |
Veterinary medicine
medicine.medical_specialty Biology Brucellosis Dogs Food Animals Risk Factors Seroepidemiologic Studies Epidemiology medicine Brucella melitensis Animals Multivariable model Mexico Goat Diseases Goats Case-control study medicine.disease biology.organism_classification Breed Increased risk Logistic Models Case-Control Studies Herd Animal Science and Zoology Female |
| Zdroj: | Preventive veterinary medicine. 37(1-4) |
| ISSN: | 0167-5877 |
| Popis: | A case-control study was conducted in the Mexicali Valley to identify risk factors for goat-herd seropositivity for Brucella melitensis. Nineteen case herds (or = 2 positive results with the 8% rose bengal plate test (RBT)) and 55 control herds (zero positive results in RBT), matched for herdsize 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 herdsize was also highly significant (p0.01). In addition, a significant (p0.05) positive association was found between the presence of seropositive dogs (as assessed by RBT) and seropositive goats on the same ranch. |
| Databáze: | OpenAIRE |
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