El virus de la diarrea viral bovina (VDVB) genera pérdidas significativas en la producción de bovinos. Se reporta sobre un caso fatal de la enfermedad de las mucosas en un toro de dos años. Para la detección del agente causal, se analizaron muestras de lesiones, de sangre completa y de heces mediante el RT-PCR, PCR, ELISA y aislamiento viral. Se obtuvo amplificación positiva por RT-PCR en muestras de sangre para el virus de la diarrea viral bovina (VDVB). El aislamiento viral de las muestras de las lesiones confirmó que el VDVB fue el agente causal de las manifestaciones clínicas. Una caracterización genética basada en el análisis filogenético de tres secuencias parciales identificó la presencia del subgenotipo 1b del VDVB en las muestras analizadas. El animal muestreado manifestaba signos clínicos indicando que tenía la enfermedad de las mucosas, lo cual sugiere que sufría de una infección persistente (IP) por VDVB. Este hallazgo resalta la importancia de establecer programas de control de VDVB basados en probar la presencia de IP en el ganado de México.
Palabras clave: Virus diarrea viral bovina, Ganado, Enfermedad de las mucosas, infección persistente, México.
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