埃及卫生部宣布了四起人感染甲型H5N1禽流感病毒确诊病例。

The Ministry of Health of Egypt has announced four new confirmed cases of human infection with avian influenza a (H5N1) virus.

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2011年4月6日-埃及卫生部宣布了四起甲型H5N1禽流感病毒人间感染确诊病例。

April 2011 - The Ministry of Health of Egypt has announced four new confirmed cases of human infection with avian influenza a (H5N1) virus.

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尽管2000年之后主导血清型在DENV - 3和DENV - 2之间交替，但是全部四种登革热病毒血清型一直在循环着。

All four dengue virus (DENV) serotypes were permanently in circulation, though the predominant serotype has alternated between DENV-3 and DENV-2 since 2000.

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