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All countries should immediately now activate their pandemic preparedness plans. Countries should remain on high alert for unusual outbreaks of influenza-like illness and severe pneumonia.

所有国家现在都应立即启动大流行防备计划。各国应对流感样疾病和严重肺炎的异常暴发保持高度警惕。

— Margaret Chan 陈冯富珍