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A prospective study of vesicular stomatitis in cattle in an enzootic region of Mexico |
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| Authors: | J Hernandez De Anda MD Salman J Mason TJ Keefe PA Webb JS Reif R Akkina |
| Institution: | a Instituto de Investigaciones en Ciencias Veterinarias, Universidad Autonoma de Baja California, Mexicali, BC 21100, Mexico b Department of Environmental Health, Colorado State University, Fort Collins, CO 80523, USA c USDA, APHIS, Foot and Mouth Disease Program in Mexico, P.O. Box 3087, Laredo, TX 78040, USA d Division of Vector-Borne Diseases, Centers for Disease Control, Fort Collins, CO 80522, USA e Department of Microbiology, Colorado State University, Fort Collins, CO 80523, USA |
| Abstract: | A prospective study of vesicular stomatitis was conducted in two bovine herds in southeastern Mexico. In July 1987, an initial serological screening showed that 64% and 87% of the 654 cattle tested negatively to vesicular stomatitis New Jersey and Indiana antibodies, respectively, using the plaque-reduction serum neutralization test. Most seropositive animals were at least 24 months of age. Based on the initial serological screening, cohorts of seronegative and seropositive cattle were monitered (January–December 1988) for the prevalence of vesicular stomatitis virus (VSV) antibodies using an enzyme-linked immunosorbent assay (ELISA). The serological results, using ELISA, indicated that no VSV activity occured in the two study herds. The seronegative cohort of cattle did not yield a positive seroconversion pattern to either VSV Indiana or New Jersey. The seropositive cohort showed a variable antibody response pattern against the VSV. There were no clinical cases of vesicular stomatitis (VS) in the two herds. The data from the national surveillance program for vesicular diseases suggested that 1988 was a year of low VSV infection incidence in southeastern Mexico. |
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