6/16/2023 0 Comments Rdp download recombination![]() Several studies have reported that recombinant PRRSV strains emerged in China, Korea, and France because of recombination between wild-type and vaccine strains ( 2 – 6). PRRS has remained the most important disease of swine throughout the world, and live attenuated vaccines are used to reduce the clinical impact of PRRSV infection. ![]() Historically, PRRSV comprises type 1 (PRRSV-1) and type 2 (PRRSV-2) recently, PRRSV-1 was taxonomically classified into the species Betaarterivirus suid 1 and PRRSV-2 into the species Betaarterivirus suid 2. PRRS virus (PRRSV) is an enveloped, single-stranded, and positive-sense RNA virus belonging to the family Arteriviridae ( 1). Porcine reproductive and respiratory syndrome (PRRS), characterized by reproductive failure in sows and respiratory distress in pigs of all ages, causes substantial economic loss to the worldwide swine industry.
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