1.
Vopr Virusol
; 49(2): 42-6, 2004.
Artículo
en Ruso
| MEDLINE
| ID: mdl-15106384
RESUMEN
Described in the paper are study results of some immunobiological properties of 5 field isolates of the porcine reproductive and respiratory syndrome virus (PRRSV), obtained in Russia and Byelorussia in 1998-2001. According to the research work, the PRRSV isolates with different immunobiological properties have been circulating in the territories of Russia and Byelorussia. Three of the 4 examined virus isolates were found to be pathogenic and 1 avirulent to pigs.