| Autor: |
Herrán Ramirez OL; Department of Epidemiology and Public Health, Veterinary Institute, Federal Rural University of Rio de Janeiro, P.O. Box 23897-000, Seropedica, RJ, Brazil. luciaherranmvz@gmail.com., Azevedo Santos H; Department of Epidemiology and Public Health, Veterinary Institute, Federal Rural University of Rio de Janeiro, P.O. Box 23897-000, Seropedica, RJ, Brazil., Jaramillo Delgado IL; Faculty of Graduate School, CES University, P.O. Box 050021, Medellin, Colombia., da Costa Angelo I; Department of Epidemiology and Public Health, Veterinary Institute, Federal Rural University of Rio de Janeiro, P.O. Box 23897-000, Seropedica, RJ, Brazil. |
| Jazyk: |
angličtina |
| Zdroj: |
Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] [Braz J Microbiol] 2020 Dec; Vol. 51 (4), pp. 2133-2143. Date of Electronic Publication: 2020 Sep 12. |
| DOI: |
10.1007/s42770-020-00377-z |
| Abstrakt: |
A cross-sectional study was conducted to determine the associated factors of brucellosis in Colombia's preeminent dairy region declared in quarantine. A total of 656 samples were collected from cows ≥ 2-year-old from 40 herds. Samples were screened by the Rose Bengal Plate Test, and the Fluorescence Polarized Assay test and Competitive ELISA were used as confirmatory tests. A cow was classified as positive if the screening and both confirmatory tests were positive. A herd was classified as positive if at least one cow was seropositive. The factors associated to seropositivity were tested using a logistic regression model with explanatory variables regarding cattle management, zootechnical parameters, and sanitary practices. The seroprevalence at the animal level was 6.6% (43/656) and at herd level 27.5% (11/40). In the model, five variables explained the animal cases: purchase or animal transfer between owner's farms (OR = 2.79, 95% CI 1.42, 5.49), history of abortion (OR = 4.22, 95% CI 1.91, 9.33), birth of weak calves (OR = 13.77, 95% CI 2.75, 68.91), use of a bull for mating (OR = 9.69, 95% CI 2.23, 42.18), and the vaccination in adulthood (OR = 3.03, 95% CI 1.04.8.78). In the model at the herd level, two variables explained the cases: birth of weak calves (OR = 9.60, 95% CI 1.54, 59.76) and purchase or animal transfer between owner's farms (OR = 7.22, 95% CI 1.03, 50.62). These results justify the need for a quarantine declaration in the region and the implementation of epidemiological studies as a public health measures used to combat outbreak. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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