·The positive rate of influenza virus testing has increased in southern provinces, with several provinces experiencing a decrease in positive rates. The positive rate of influenza virus testing has shown a decrease in some northern provinces. There were 1219 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; 415(49.9%) influenza A(H3N2) viruses were characterized as A/Croatia/10136RV/2023(egg)-like, 689(82.8%) 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.