%0 Journal Article %T VIRULENCE OF STRAINS/ISOLATES OF PORCINE REPRODUCTIVE AND RESPIRATORY SYNDROME VIRUS TYPE 1 %A Vlasov, M.E. %A Lunicyn, A.V. %A Pronin, V.V. %K PRRS virus, virulence, clinical signs, viremia, pathological changes, monoinfections, coinfection %J Bulletin of KSAU %D 2025 %N 0 %P 15 %I Krasnoyarsk State Agrarian University