Weekly Report

Week 28 2025

Article source: Date time:2025-07-17 
Download:China flu report 2528.pdf

Summary

 

·Influenza activity in the southern provinces and northern provinces was low. There was 1 ILI outbreak reported in this week.


·Among influenza viruses antigenically characterized by CNIC since October 1, 2024, 3712(98.6%) influenza A(H1N1)pdm09 viruses were characterized as A/Victoria/4897/2022-like; 149(63.7%) influenza A(H3N2) viruses were characterized as A/Croatia/10136RV/2023(egg)-like, 220(94.0%) influenza A(H3N2)viruses were characterized as A/District of Columbia/27/2023(cell)-like; 216(97.3%) 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, 2024, all but 109 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 endonuclease inhibitors.