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Neospora caninum seropositivity and association with abortions in dairy cows in Mexico
Z Garcia-Vazquez1, R Rosario-Cruz, A Ramos-Aragon
1Facultad de Ciencias Agropecuarias, Universidad Autonoma del Estado de Morelos, Cuernavaca, Morelos, Mexico. garciaz@prodigy.net.mx
Abstract:
The seroprevalence of Neospora caninum infection was estimated from a sample of 813 cattle from 20 dairy herds in five regions in Mexico. The true prevalence of infection was estimated to be 42% (95% CI: 39, 46). Seropositivity was associated with abortion (odds ratio (OR)=2.0) and was higher among cows raised on-farm (41%), than among replacement cattle purchased outside the farm (28%). The ORs relating abortion to seropositivity in individual herds ranged from 1.3 to 10. Overall, 26% of the abortions were attributed to N. caninum.
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