Masks Favored in Ecuador After 1st Flu Case Confirmed
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Students of a school wear masks to prevent the A/H1N1 flu in Guayaquil, Ecuador, on May 15, 2009. [Xinhua]
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Students of a school use masks to prevent the A/H1N1 flu in Guayaquil, Ecuador, on May 15, 2009. [Xinhua]
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