采取这个措施可能会从市场转召回产品并向公众发出该产品已经流通的警戒信号。

The actions that follow may include removing the product from the marketplace and alerting the public if it has already been distributed.

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全球计划的目的是要把警戒和预防措施扩大到所有疟疾流行国家，从而增加又一层保护。

What the global plan aims to do is add another safeguard by extending vigilance and preventive measures to all endemic countries.

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如果世卫组织宣布猪流感警戒级别从目前的5级提升到6级，则一系列新的控制和预防措施将被启用。

If the who declares the swine flu alert should move up from the current phase 5 to the highest level of phase 6, a whole raft of new measures and precautions will be triggered.

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