STRAIN OF PORCINE REPRODUCTIVE AND RESPIRATORY SYNDROME VIRUS FOR PRODUCTION OF DIAGNOSTIC AND/OR VACCINE PREPARATIONS

摘要

FIELD: virology.;SUBSTANCE: disclosed is strain of Porcine Reproductive and Respiratory Syndrome virus. Said strain is obtained by serial passages on 3-days Mare-145 cell culture. Said strain reproduces in cytoplasm of 3-days Mare-145 cell culture at 37°C. After 96 h incubation virus of 6-th passage is accumulated up to titer of 5.17lgTCD₅₀/ml.;EFFECT: strain with weak virulence for porcine and high biological, virulent and immunogenic activity in native form and after inactivation.;16 tbl, 9 ex