Story perspectives

CDC Reports Early Rise in Flu Activity, H1N1 Dominant

By Drooid · Oct 25, 2026, 3:19 PM UTC · How we work

Summary

Story summary

The U.S. Centers for Disease Control and Prevention reports an early rise in seasonal influenza activity.
CDC recorded 4,811 lab-confirmed flu hospital admissions for the week ending Oct. 17.
National flu test positivity rose to 5.7%, with 10.7% on the West Coast.
99.2% of subtyped viruses were influenza A(H1N1), the dominant strain this season.
CDC lab testing found 93.2% of H1N1 samples matched antibodies from this season’s vaccine.

1 of 1

Story summary

The U.S. Centers for Disease Control and Prevention reports an early rise in seasonal influenza activity.
CDC recorded 4,811 lab-confirmed flu hospital admissions for the week ending Oct. 17.
National flu test positivity rose to 5.7%, with 10.7% on the West Coast.
99.2% of subtyped viruses were influenza A(H1N1), the dominant strain this season.
CDC lab testing found 93.2% of H1N1 samples matched antibodies from this season’s vaccine.