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. 2017 Aug;23(8):1355–1359. doi: 10.3201/eid2308.170640

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Geographic distribution of human cases of infection with HPAI A(H7N9) virus, China, September 1, 2016–March 31, 2017. The red circles indicate the counties with HPAI A(H7N9) virus infections within Guangxi, Guangdong, and Hunan provinces during the fifth epidemic. Shading indicates the total numbers of LPAI A(H7N9) virus infections by province during the fifth epidemic. HPAI, highly pathogenic avian influenza; LPAI, low pathogenic avian influenza.