Mexico has the highest number of deaths and infections of the flu, which is caused by a new strain of the influenza a H1N1 virus.

被称为“猪流感”的病毒是一种新的甲型H1N 1流感病毒株。墨西哥的感染和死亡人数最多。

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The main route of transmission of the new influenza A(H1N1) virus seems to be similar to seasonal influenza, via droplets that are expelled by speaking, sneezing or coughing.

新型流感A(H1N1)的传播途径与季节性流感类似 通过说话，喷嚏和咳嗽产生的飞沫。

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May 2009 - WHO is not recommending travel restrictions related to the outbreak of the influenza a (H1N1) virus.

2009年5月1日-世卫组织未建议因甲型H1N 1流感病毒暴发而限制旅行。

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Mexico has the highest number of deaths and infections of the flu, which is caused by a new strain of the influenza A H1N1 virus.

VOA: standard.2009.05.08

The news reports are likely to further crimp Mexican tourism, already in a downturn after the emergence of the swine influenza A-H1N1 virus in Mexico in April.

VOA: standard.2009.06.09

This year's North American vaccine is made from three viruses: two types of influenza A virus (H3N2 and H1N1) and an influenza B virus.

CNN: Had a flu shot? You'll be OK -- maybe

Swine flu is a respiratory disease which is caused by a strain of the influenza type A virus known as H1N1.

BBC: India swine flu outbreak 'kills 94'

The children were infected with a virus known as swine influenza A H1N1, which has a unique combination of genes not previously seen in flu viruses in either humans or swine - although it shares similarities with a virus that has been circulating in pigs since 1999.

CNN: CDC: Swine flu seen in 2 California children