Update in PRRSV vaccinology

NEBRASKA - In 1987 Porcine Reproductive and Respiratory Syndrome (PRRS) was first diagnosed in the U.S. The disease-causing virus (PRRSV) was identified in 1991, and several different strains of the virus have since been isolated from field cases, reports Dr. Marilia Oliveira.
calendar icon 10 November 2006
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