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(added on 2008/11/07)

Myth of effective intervention 行動有效

©2008 SpatioEpi.com
Data source: Agriculture, Fisheries and Conservation Department HKSAR
Map created by CUHK SpatioEpi Group

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There were 12 wild birds either found dead or dying with H5N1 during January to March 2007 in Kowloon (Top). Consequently, the government conducted a special cleansing operation on 2/3/2007 in Sham Shui Po and Mongkok. After the cleansing operation, only one dead bird was found in Hung Hom over the following two months (Bottom). While the cleansing operation might have appeared effective, other factors like migration of birds could have contributed to the phenomenon.

由零七年一月至三月期間,九龍撿獲十二隻感染H5N1的病或死鳥(上圖)。有見及此,三月二日政府有關部門聯合在深水埗和旺角進行特別清洗行動。在往後的兩個月,只有一隻受感染的死鳥在紅磡被發現(下圖)。清洗後病或死鳥數目似乎大大減低,但在分析時,要考慮其它如雀鳥離去等因素。