Influenza at the human-animal interface summary and assessment, 13 December 2021
2 October to 13 December 2021
22 December 2021
| Emergency situation update

Overview
Since the previous update on 1 October 2021, nine human cases of infection with avian influenza A(H5N6) viruses, four human cases of infection with avian influenza A(H9N2) viruses and one human case of infection with an influenza A(H1N2) variant virus were reported officially. Three human cases of infection with influenza A(H1N1) variant viruses, one human case of infection with an influenza A(H1N2) variant virus, one human case with influenza A(H1Nx) variant virus and one human case of infection with an influenza A(H3N2) variant virus were also detected.
WHO Team
Global Influenza Programme (GIP)