Russia Reports Seasonal Flu Rise as H3N2 Leads

Early lab testing found 80–90% neutralizing activity against the circulating H3N2 in vaccinated people.

Overview

Rospotrebnadzor reported a seasonal increase in acute respiratory infections and influenza across the country.
H3N2 is the predominant virus this season, aligning with WHO expectations following its low activity last year.
This season’s vaccine contains WHO‑recommended strains, and circulating A(H1N1) and B viruses fully match the vaccine components.
The circulating H3N2 is close to the vaccine strain but carries several mutations that are being assessed by the Vector research center.
Health authorities reiterated that vaccination remains the most effective protection against severe flu and complications.