Weekly Report

Week 37 2022

Article source: Date time:2022-09-23 
Download:China flu report 2237.pdf

Summary

 

●Influenza detections were decreasing in southern provinces, and decreased in  northern provinces this week. A(H3N2) is dominated. There were fourteen outbreaks caused by A(H3N2) in week 37.

●Among influenza viruses antigenically characterized by CNIC since October 1, 2021, 440(86.4%) influenza A(H3N2) viruses were characterized as A/Cambodia/e0826360/2020(egg)-like, 453(89.0%) influenza A(H3N2) viruses were characterized as A/Cambodia/e0826360/2020(cell)-like, 1356(33.8%) influenza B/Victoria viruses were characterized as B/Washington/02/2019-like.

●Among the influenza viruses tested by CNIC for antiviral resistance analysis since October 1, 2021, all influenza A(H3N2) and B viruses were sensitive to neuraminidase inhibitors and endonuclease inhibitors.