来自流行国家的这种输入性病例,我们把他们叫做一代病例,在他的传染期内,跟他的密切接触者被感染了,在该病最短与最长潜伏期之间出现的病例;有时也称为续发病例。 二代病例是指在原发病例出现后,受其传染而发生的病例。来自疫情流行国家的病例被称为输入性病例,也叫一代病例,被一代病例感染的本土病人就被称为二代病例。其主要意义是用于专业人员分析传染源和传播链,以便追寻密切接触者。
2005年没有家庭内二代病例,2006年上半年有2例家庭内二代病例。
There were no secondary cases in the families in 2005, and 2 secondary cases in the first half of 2006.
国内首个二代病例确诊。卫生部上周五宣布,中国大陆内出现了首个甲型h1n 1流感病毒传播病例。
First domestic flu case confirmed. The a (H1N1) flu virus has been transmitted on the Chinese mainland for the first time, the Ministry of Health said on Friday.
其中指征病例和1名二代病例分别直接传播了12例和13例续发病例,其传播过程可以用清晰的传播链加以描述;
There were 12 cases having directly contact with the index case and 13 cases with one secondary case. The transmission chains of this outbreak could clearly be depicted.
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