FIELD: virology, biotechnology. SUBSTANCE: "VGNKI-4" DEP strain of cattle paragrippe-3 (PG-3) virus is obtained due to adaptation of epizootic strain to interwoven cellular culture of calf's kidneys "Taurus-1". The strain is depoted in the Collection of microorganisms under registration name of "VGNKI-4" DEP. The latter differs from both manufactured and earlier isolated epizootic strains of cattle PG-3 virus. Virus of "VGNKI-4" strain proliferates well in cellular cultures PEK, PT, MDVK, VNK-21, PC and accumulates in titers 5.0-7.51 g TCD . "VGNKI- 4" strain is stable and safe. It keeps initial characteristics at subsequent passivating in sensitive biological systems for 9-10 passages (investigation period). EFFECT: broadened antigenic range of action, higher biological and immunogenic activity, higher efficiency to be used in manufacturing efficient diagnostic and vaccine preparations. 10 ex
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Authors
Dates
2002-05-20—Published
2001-05-31—Filed