Influenza at the human-animal interface summary and assessment, 19 December 2025

Overview

From 6 November to 19 December 2025, based on reporting date, the detection of influenza A(H5N1) in one human, A(H5N5) in one human, A(H9N2) in seven humans, and an influenza A(H1N1) variant virus in one human were reported officially. In addition, one human case of infection with an influenza A(H1N2) variant virus was detected.