Province of origin No. of samples No. of H3 virus isolates No. (%) H3 seropositive of those tested
Jiangxi 1,072 12 149 (13.9)
Hunan 530 2 108 (20.4)
Hebei 298 0 58 (19.5)
Hubei 170 1 36 (21.2)
Guangxi 110 1 25 (22.7)
Hainan 61 0 17 (27.9)
Henan 28 1 4 (14.3)
Zhejiang 13 0 1 (7.7)
Zhuhai, Guangdong 11 0 3 (27.3)
Shenzhen, Guangdong 13 0 3 (23.1)
Guangdong, other 4,226 46 936 (22.1)
Total 6,532 63 (1%) 1340 (20.5)