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    • 20. 发明公开
    • Live vaccine to getah virus infectious disease, and trivalent live vaccine to Japanese encephalitis virus, porcine parvovirus and getah virus infectious diseases
    • 针对病毒感染性疾病盖塔和日本脑炎病毒三价活疫苗,并Schweinparvovirus盖塔病毒活疫苗。
    • EP0562136A1
    • 1993-09-29
    • EP92105058.9
    • 1992-03-24
    • DIVISION OF MICROBIOLOGY, KYOTO BIKEN LABORATORIES, INC.
    • Izumida, AkihiroKodama, KazuoKubota, MichioMatsui, OsamuIshida, Yasuhisa
    • A61K39/12A61K39/23
    • A61K39/12A61K2039/5254A61K2039/552A61K2039/70C12N2750/14334C12N2770/24134C12N2770/36134
    • A trivalent live vaccine to Japanese encephalitis virus, porcine parvovirus and Getah virus infectious diseases, which comprises a mixture of (i) a live vaccine to Getah virus infectious disease as created by cultivating an attenuated Getah virus KB/VT strain, as obtained by continuous serial passages of a virulent Getah virus strain in Vero cells to 70 generations at 30°C followed by two times cloning by a plaque method to get purified virus, to HAL cells in such a way that the multiplicity of infection (amount of inoculated viruses/number of cells) is about 0.1; adsorbing the viruses to the cells for 60 minutes at 37 °C; then removing the inoculated viral fluid from the cells; adding a culture medium for cultivation of the viruses thereto; incubating the cells for 48 to 72 hours at 30°C; and, after the cytopathic effect (CPE) has been confirmed to progress to the middle degree or more, collecting the culture medium fluid to obtain an intended living vaccine to Getah virus infectious disease, (ii) a viral fluid as obtained by inoculating an attenuated Japanese encephalitis virus m strain to HmLu-1 cells as admitted to be suitable for propagation of the attenuated Japanese encephalitis virus m strain therewith, and (iii) a viral fluid as obtained by inoculating an attenuated porcine parvovirus HT⁻ /SK strain to swine kidney culture cells as admitted to be suitable for propagation of the attenuated porcine parvovirus HT⁻ /SK strain therewith, in such a proportion that the viral content in each viral fluid in the mixture is almost the same.
    • 三价活疫苗,以日本脑炎病毒,猪细小病毒和盖塔病毒感染性疾病,通过连续而获得,包括(i)如通过培养上减毒的盖塔病毒KB / VT应变创建的活疫苗,以盖塔病毒感染性疾病,的混合物 在30℃,然后两次用噬斑方法克隆在Vero细胞中强毒盖塔病毒株至70代的连续传代来获得纯化的病毒,对HAL细胞在寻求一种方式并感染的接种病毒的多重性(量/ 细胞数)为约0.1; 在37℃下吸附病毒向细胞60分钟; 然后除去从细胞接种的病毒液; 增加了对其的病毒培养的培养基; 温育48至72小时的细胞在30℃; 并且,该致细胞病变效应(CPE)已被证实进步到中间程度以上,收集培养介质液,得到在预期活疫苗,以盖塔病毒感染性疾病,(ⅱ)的病毒液后得到由减毒接种 日本脑炎病毒米菌株HmLu-1细胞作为承认其是适合于与减毒日本脑炎病毒米应变那里的传播,和(iii)的病毒液通过减毒猪细小病毒HT的接种而获得< - > / SK应变 猪肾培养细胞作为承认其是适合于减毒猪细小病毒HT的传播< - > /斯克·斯特兰那里,在寻求的比例并在混合物中的每病毒流体病毒含量几乎是相同的。