该男子是一个大家庭中第七名受到H5N1病毒感染的成员和第六名死亡的成员。
The man is the seventh member of an extended family to become infected with the H5N1 virus and the sixth to die.
该病毒的传播已经符合世卫组织流感预警机制的最高级，第六级。
The transmission of the virus meets the WHO's technical definition of a Phase Six outbreak, the highest possible.
到今年底，人类的H5N1病毒能力还不足以散播，警示层级只到第三阶段，距离真正的全球大流行（第六阶段）还差两步。
The self-limiting outbreaks of human H5N1 influenza seen so far bumped the alert level up to phase three, two steps removed from outright pandemic (phase six).
到今年底，人类的H5N1病毒能力还不足以散播，警示层级只到第三阶段，距离真正的全球大流行（第六阶段）还差两步。
The self-limiting outbreaks of human H5N1 influenza seen so far bumped the alert level up to phase three, two steps removed from outright pandemic (phase six).
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