Dengue vaccines are currently being tested in clinical trials but public health specialists are already working on delivery strategies for a rapid roll-out to the people who need them most.

虽然登革热疫苗目前仍处于临床试验阶段，但公共卫生专家已着手开展工作，研究如何制定战略，向最需要的人迅速提供这些疫苗。

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But the basic question is whether the rapid roll-out has led to corners being cut.

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It is more stable, it is capable of rapid manoeuvres and movement, and it can roll in any direction.

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Gogo expects to roll out ATG-4 at a rapid pace, with hundreds of aircraft installations planned before the end of 2013.

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