The virus does contain some genetic characteristics in common with classical swine flu, but, as the OIE says, it would be more logical to call it North American flu.

因为此病毒含有一些与典型性猪流感病毒相同的特征性基因。世界动物卫生组织表示，称为北美流感更为合理。

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The UK and other countries change their rules and start testing people who have flu but no North American contacts.

英国和其他国家改变了他们的规则并开始测试没有与北美接触的流感患者。

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The two strains whose genes are found in the hybrid belong to influenza families known generally as North American and Eurasian pig flu.

在加利福尼亚病毒样本中发现的两种菌株的基因很常见，属于北美和欧亚猪流感株。

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While we take a break from influenza during the North American summer, flu attacks the Southern Hemisphere, and in the tropics, flu rates are relatively stable throughout the year.

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So far, according to the CDC, this year's North American vaccine matches well with the most predominant type of flu spreading in the United States, but is less well matched to the No. 2 type of virus.

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