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.
世界衛生組織(WHO)正考慮對其流行疫情分級制度進行全面改革,目前,人們指責該組織由于快速升級豬流感警戒級別,而引發恐慌。
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