The historical legacy of the severe 1918 pandemic, and the very high case-fatality rate of human infections with avian (H5N1) influenza, contrast with the milder pandemics of 1968 and 2009.

严重的1918年大流行的历史遗产，及病死率极高的人感染禽流感(H5N1)，与相对轻微的1968年和2009年大流行形成对比。

youdao

"The 1918 influenza pandemic provides an exceptional opportunity to evaluate effects of prenatal environment using U. S. census data, " writes Almond.

1918年的流感为使用人口普查数据来评估出生前的环境对以后的影响提供了一个很好的特例。

youdao

The method was used to design proteins that bind a conserved surface patch on the stem of the influenza hemagglutinin (ha) from the 1918 H1N1 pandemic virus.

研究人员通过该方法设计出来的蛋白，能够结合到广泛流行性病毒1918 H1N 1蛋白血凝素(HA)主干上的一个保守的表面区域。

youdao

This is welcome news for U.S.health officials, who initially had to consider the possibility that the new flu strain's impact could mirror the devastation of the 1918 influenza pandemic that led to tens of millions of deaths worldwide.

VOA: standard.2009.05.03

Barry is the author of "The Great Influenza, " perhaps the signature history of the devastating 1918 pandemic.

CNN: Scientists dig for lessons from past pandemics