Enhance the surveillance system on influenza viruses to decrease the risk: The current progress in Russia

Birds at wholesale or retailmarkets which selling live poultry are recognized as important places where some reassortation processes might happen to form new variants,such as reported H7N9,H5N6 and H4N2[1,2].In this case,workers in the poultry business are under the high risk of being directly infected by influenza viruses.The recent study presented by Quan et al.