Restriction fragment length polymorphism (RFLP) analysis of open reading frame 5 was developed for typing of Czech strains of porcine reproductive and respiratory syndrome virus (PRRSV). The set of restriction enzymes Acc I. Hae II and SnaB I allowed the differentiation of heterogeneous Czech strains of PRRSV clustered separately in the phylogenetic tree. The high-passage strain V-502... https://www.spidertattooz.com/Venture-Pouch/