A serological survey for anaplasmosis in cattle in the Mexican states of Nuevo Leon,Tamaulipas and Coahuila using the card test |
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| Authors: | R.F. Teclaw S. Romo Z. Garcia G.G. Wagner |
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| Affiliation: | 1. Department of Veterinary Microbiology and Parasitology, Texas A&M University, College Station, TX 77843, U.S.A.;2. Facultad de Medicina Veterinaria, Universidad Autonoma de Nuevo Leon, Monterrey, Mexico;3. Centro Nacional de Parasitologia Animal, Jiutepec, Morelos, Mexico |
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| Abstract: | Blood samples from 2156 cattle from 40 herds in the Mexican states of Nuevo Leon, Tamaulipas and Coahuila were tested for antibody activity to Anaplasma marginale using the card test. Herd prevalence rates ranged from 0 to 86% with a mean of 22%. Analysis of joint positivity to A. marginale and Babesia bovis and to A. marginale and B. bigemina in individual animals resulted in the rejection of the null hypothesis of no association in 7 and 8 of 37 herds, respectively. |
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