Weekly Report

Week 43 2024

Article source: Date time:2024-10-31 
Download:China flu report 2443.pdf

Summary

 

Influenza detections decreased slightly in the southern provinces, northern provinces were still at low level. A(H1N1)pdm09 was predominated. There were 7 ILI outbreaks reported in week 43.





Among influenza viruses antigenically characterized by CNIC since April 1, 2024, 1267(97.2%) influenza A(H1N1)pdm09 viruses were characterized as A/Victoria/4897/2022-like; 375(55.3%) influenza A(H3N2) viruses were characterized as A/Thailand/8/2022(egg)-like, 442(65.2%) influenza A(H3N2) viruses were characterized as A/Thailand/8/2022(cell)-like; 987(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 21 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.