Volume 19, Number 8—August 2013
Monitoring Avian Influenza A(H7N9) Virus through National Influenza-like Illness Surveillance, China
|Patient age, y||No. positive/no. tested
|Persons from 10 outbreak-affected areas†||Persons from 21 non-affected provinces|
*ILI, influenza-like illness.
†Areas include Beijing and Shanghai Municipalities and Anhui, Jiangsu, Zhejiang, Shandong, Henan, Fujian, Jiangxi, and Hunan Provinces.
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