Seasonal distribution of highly pathogenic avian influenza (HPAI) H5N1 case occurrence by country, 1997–2013.
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Row percentages are reported.e: country was classified as Equatorial (all others classified as Northern hemisphere).Seasonal distribution of highly pathogenic avian influenza (HPAI) H5N1 case occurrence by country, 1997–2013.
创建时间：
2015-12-02
