Weekly Report

Week 33 2024

Article source: Date time:2024-08-22 
Download:China flu report 2433.pdf

Summary

 

Influenza detections were decreasing in the southern provinces, northern provinces kept at low level. A(H1N1)pdm09 was predominated. There was no ILI outbreak reported in week 33.





Among influenza viruses antigenically characterized by CNIC since April 1, 2024, 777(96.9%) influenza A(H1N1)pdm09 viruses were characterized as A/Victoria/4897/2022-like; 347(56.6%) influenza A(H3N2) viruses were characterized as A/Thailand/8/2022(egg)-like, 385(62.8%) influenza A(H3N2) viruses were characterized as A/Thailand/8/2022(cell)-like; 945(99.1%) influenza B/Victoria viruses were characterized as B/Austria/1359417/2021-like.




 

Among the influenza viruses tested by CNIC for antiviral resistance analysis since April 1, 2024, all but 4 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.