According to the authority, Ziliujing district of Zigong city reported one human H7N9 AIV case on 20th May, this is the first human H7N9 AIV case reported in Zigong city. The 44-year-old male, surname Wang, had worked in wet market for live poultry trading for years, was in stable condition and remained in designated hospital in Chengdu for treatment and qurantine.