It turns out that if you give one child in a home the oral vaccine, you often have a protective effect in other children in the home as well because it spreads from one individual to another.

结果显示,如果给一个家庭中的,一个孩子服用了口服疫苗,就等于给家中的其他孩子,同样进行了保护,因为它会在个体之间进行传播

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Yet given the modest impact of the coverage so far, once the 1, 500 international journalists in Baku have packed up and gone home any effect is unlikely to last.

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"The study brings home the powerful effect that the online medium is having on people's lives, " said Philip Rowley, President of AOL Europe.

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Now though, the new Facebook Home - in effect a skin you can install to turn an Android phone into a social networking device - seems to be right at the centre of the mobile strategy.

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