Methods The influenza virus isolation was performed by MDCK cells and embryonated eggs.
方法用狗肾传代(MDCK)细胞和鸡胚双腔法进行流感病毒分离。
The Newcastle Disease viruses (NDV) of strains F48Eg and N-79 prepared from embryonated eggs were purified by one differential centrifugation.
经一次差速离心分别提取鸡胚尿囊液中的F_（48）E_8和N-79株鸡新城疫病毒（NDV），获得纯化抗原。
The Newcastle Disease viruses (NDV) of strains F48Eg and N-79 prepared from embryonated eggs were purified by one differential centrifugation.
经一次差速离心分别提取鸡胚尿囊液中的F_（48）E_8和N-79株鸡新城疫病毒（NDV），获得纯化抗原。
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