Health authorities in Beijing have reported a second case of human infection of the H7N9 strain of bird flu.

Chinese researchers published yesterday in the Lancet the first comprehensive genetic analysis of the origins and evolutionary history of H7N9.

中国研究人员近日在《柳叶刀》（Lancet）杂志上发布了关于H7N9来源和演变历史的首个综合基因分析。

China starts H7N9 vaccine development

中国开始研制H7N9疫苗

China has reported six new human cases of H7N9 bird flu and one more death.

中国新增6起人感染H7N9禽流感病例，其中死亡一例。

China has announced FOUR new cases of H7N9 bird flu, two in Zhejiang province, one in Shanghai and one in Jiangsu.

中国宣布又发现4例H7N9禽流感感染患者，浙江2例，上海1例，江苏1例。

His recovery proves that not every human infection of H7N9 is severe, Wu said.

吴凡还说：他的康复证实了并不是每一例人类H7N9感染病例都是严峻的。

Health authorities in Fujian are reporting a new human infection of the H7N9 avian flu.

福建省卫生部门通报，福建省新确诊1例人感染H7N9禽流感病例。

Health authorities in east China's Jiangxi Province have now confirmed the province's first human case of H7N9 avian influenza.

中国东部江西省卫生部门通报，江西省确诊首例人感染H7N9禽流感病例。

The H7N9 strain belongs to the type-A group.

H7N9病毒株属于甲型流感。

So far, 33 people on the mainland have come down with the new H7N9 virus.

截至目前，中国内地共发现35例人感染H7N9禽流感病例。

They tested positive for H7N9 on Tuesday afternoon.

在周二下午他们被确诊感染H7N9禽流感。

Xinhua said that five H7N9 patients had been discharged from hospitals.

新华社说，有五名H7N9禽流感患者已经出院。

Epidemiological analysis on first imported A/ H1N1 cases of students in Guangdong Province

广东省首起学生输入性甲型H1N1流感疫情的流行病学分析

Pandemic analysis of the novel influenza A ( H1N1) virus

新甲型H1N1流感病毒及疫情分析

South African Capacity to Response to Emergency From H1N1 Influenza A Outbreak

从甲型H1N1流感事件看南非应对突发事件的能力

We heard about the H1N1 virus for the first time just months ago.

我们几个月前第一次听说H1N1病毒。

Health education strategy on flu A ( H1N1) control and prevention

防控甲型H1N1流感的健康教育策略

Existing Central Air-conditioning system how to deal with the challenge of "H1N1"

既有中央空调系统如何应对H1N1病毒提出的挑战

Assessment and Choosing Analysis of Influenza A ( H1N1) Control and Prevention Strategy in China

我国甲型H1N1流感防控策略的评析及选择

A survey on A/ H1N1 influenza knowledge of 428 undergraduates

428名大学生甲型H1N1流感知识的调查分析

Q: How many different vaccine candidates will be available for A ( H1N1)?

问：共有多少甲型H1N1候选流感疫苗？