Laboratory tests have confirmed infection with avian influenza a (H5N1) virus.

实验室检测已经确认感染了甲型H5N1禽流感病毒。

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Of the 108 laboratory confirmed cases of Avian influenza A(H5N1) reported in Egypt, 33 have been fatal.

在埃及报告的108例甲型H5N1禽流感实验室确诊病例中，有33例死亡病例。

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Of the 96 laboratory confirmed cases of Avian influenza a (H5N1) reported in Egypt, 27 have been fatal.

在埃及报告的96例甲型H5N1禽流感实验室确诊病例中，有27例死亡病例。

youdao

Health officials in Mexico and the United States were puzzled by a virus that combined elements of swine, avian and human influenza.

VOA: standard.2009.12.25

The new virus has genes from North American swine influenza, avian influenza, human influenza and a form of swine influenza normally found in Asia and Europe, said Nancy Cox, chief of the CDC's Influenza Division.

CNN: Among the swine flu mysteries: Why only deaths in Mexico?

Avian influenza "never became a man-to-man disease, " said Dr. Lo Wing-Luk, an infectious disease expert.

CNN: Pandemic: What would happen next?

According to Dr. Ron Fouchier, a Dutch virologist, this mutation allows the virus to reproduce at much lower temperatures than a standard avian influenza virus.

CNN: New bird flu well-adapted to infect people