·The positive rate of influenza virus testing began to decrease in southern provinces. The positive rate of influenza virus testing continued to decrease in northern provinces. There were 651 ILI outbreaks reported in this week.

·Among influenza viruses antigenically characterized by CNIC since March 31, 2025, 1091(97.8%) influenza A(H1N1)pdm09 viruses were characterized as A/Victoria/4897/2022-like; 495(41.4%) influenza A(H3N2) viruses were characterized as A/Croatia/10136RV/2023(egg)-like, 852(71.3%) influenza A(H3N2)viruses were characterized as A/District of Columbia/27/2023(cell)-like; 313(97.5%) influenza B/Victoria viruses were characterized as B/Austria/1359417/2021-like.

·Among the influenza viruses tested by CNIC for antiviral resistance analysis since March 31, 2025, all but 31 influenza A(H1N1)pdm09 were sensitive to neuraminidase inhibitors, all A(H3N2) and B viruses were sensitive to neuraminidase inhibitors; all A(H1N1)pdm09, A(H3N2) and B viruses were sensitive to influenza polymerase inhibitors.