Suining reported 3rd human H7N9 AIV case on 4th,Feb, the 55-year-old male patient, surname Wang, lived in Huimaxikou town of Daying county of Suining city;Suining reported 4th human H7N9 AIV case on 8th,Feb, the 75-year-old male patient, surname Zhang, lived in Liushu town of Shehong county of Suining city. Both patients are in critical condition, in hospital for treatment and in quarantine. No close contacts showed ILI symptoms.

The investigation of the six Suining cases(published on Aug 2017) is available at: http://www.flu.org.cn/scn/article_detail.asp?articleId=11855