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
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RU2449013C2 |
