Weekly Report

Week 9 2026

Article source: Date time:2026-03-05 
Download:China flu report 2609.pdf

Summary

 

·The positive rate of influenza virus testing decreased moderately in southern provinces and northern provinces, with the proportion of influenza B rising. There was no ILI outbreak reported in this week.


·Among influenza viruses antigenically characterized by CNIC since October 1, 2025, 91(93.8%) influenza A(H1N1)pdm09 viruses were characterized as A/Victoria/4897/2022-like; 537(23.2%) influenza A(H3N2) viruses were characterized as A/Croatia/10136RV/2023(egg)-like, 976(42.2%) influenza A(H3N2)viruses were characterized as A/District of Columbia/27/2023(cell)-like; 224(97.0%) influenza B/Victoria viruses were characterized as B/Austria/1359417/2021-like.


·Among the influenza viruses tested by CNIC for antiviral resistance analysis since October 1, 2025, all but 2 influenza A(H1N1)pdm09 and 2 influenza A(H3N2) were sensitive to neuraminidase inhibitors, all B viruses were sensitive to neuraminidase inhibitors; all A(H1N1)pdm09, A(H3N2) and B viruses were sensitive to influenza polymerase inhibitors.