The World Health Organisation is considering an overhaul of its pandemic rating system amid criticism that it provoked alarm by rapidly escalating its warnings over swine flu.
世界卫生组织(WHO)正考虑对其流行疫情分级制度进行全面改革,目前,人们指责该组织由于快速升级猪流感警戒级别,而引发恐慌。
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