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Prev Vet Med. 2012 Nov 1;107(1-2):51-6. doi: 10.1016/j.prevetmed.2012.05.010. Epub 2012 Jun 16.

Risk factors associated with brucellosis seropositivity among cattle in the central savannah-forest area of Ivory Coast.

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LANADA/Central Veterinary Laboratory of Bingerville, P.O. Box 206, Bingerville, Cote d'Ivoire.


Serological results obtained from 907 serum samples collected from unvaccinated cattle of at least 6 months of age in the savannah-forest region of Ivory Coast were used to investigate risk factors associated with bovine brucellosis seropositivity. Serum samples were tested using the Rose Bengal test (RBT) and indirect enzyme linked immunosorbent assay (iELISA). Using a parallel interpretation, RBT and iELISA results showed that 10.3% (95% confidence interval (CI): 8.4, 12.4) of the cattle had antibodies against Brucella in our study area. The logistic regression analysis indicated that brucellosis seropositivity was associated with age and herd size. Cattle above 5 years of age were found to have a higher chance of being seropositive (odd ratio (OR)=2.8; 95% CI: 1.3, 6.4) compared to cattle under 3 years of age. Similarly, the odd of brucellosis seropositivity for herds with more than 100 cattle was 3.3 (95% CI: 1.2, 8.9) times higher compared to those with less than 50 cattle.

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