Porcine reproductive and respiratory syndrome virus antigen and processes for the preparation and use of said antigen in vaccines and diagnostics

摘要

A process for growing a PRRSV in a tissue culture which is susceptible to infection to replicate the virus to an amount sufficient to protect animals against PRRS or be used in diagnosing PRRS or identifying the molecular structure of PRRSV for development of recombinant products, comprising inoculating the virus onto the tissue culture and harvesting the replicated virus.