猪流感疫情全世界蔓延 Swine flu worldwide
世界卫生组织说墨西哥和美国突发人感染猪流感疫情已构成“国际关注的公共卫生紧急事态”。
The World health Organization has called an outbreak of human cases of swine flu in Mexico and the United States a public health emergency of international concern.
在墨西哥的猪流感疫情公布五天后，对这种集猪、禽、人流感病毒于一身的新型病毒来源的搜索将目标对准了三个地方。
Five days since the announcement of Mexico's swine flu epidemic, the search for the source of the new virus that combines pig, bird and human influenza is focusing on three main possible sites.
今年五月猪流感疫情爆发之后，英国约有100所学校关闭，但是，由于猪流感已十分普遍，英国官方改变了建议，这些学校很快又重新开课了。
About 100 schools closed after the start of the outbreak in May but soon reopened when official advice changed because swine flu was becoming so prevalent.
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