A new flu strain threatens to overwhelm healthcare systems, raising alarms among medical experts.
Story Overview
- H3N2 flu strain expected to dominate the 2025-2026 season.
- Fewer people are opting for flu vaccinations, increasing the risk.
- Experts emphasize the importance of getting vaccinated.
- Antiviral medications remain effective if administered early.
H3N2 Strain to Dominate Flu Season
The 2025-2026 flu season is projected to be dominated by the H3N2 strain, which has undergone mutations, making it harder for the immune system to recognize.
Dr. Amanda Kravitz of Weill Cornell Medicine warns of an increase in cases. Though the situation isn’t unprecedented, the flu’s rapid spread is alarming experts.
This flu season is no joke. We are seeing more cases than we would expect for this time of year, Dr. Amanda Kravitz, a pediatrician at Weill Cornell Medicine in New York, said on “CBS Mornings.”
flu season is ramping up, and some experts are "pretty worried"
https://t.co/93UoQHkuQT— Darius Radzius (@DariusRadzius) December 22, 2025
Vaccination: A Key Defense
Despite genetic changes in the H3N2 strain, experts like Jesse Bloom at the Fred Hutchinson Cancer Center advise that vaccinations still offer significant protection by reducing the risk of severe illness. Although the vaccine’s match might not be perfect, it remains a crucial tool for mitigating risk, especially for high-risk groups.
Stephen Morse of Columbia University underscores that the unpredictability of flu strains makes annual vaccination a sound precaution. Historical data, like the 1976 swine flu scare, serve as a reminder of influenza’s volatile nature.
Flu Symptoms and Treatment
Flu symptoms are typically severe, with high fevers and body aches. Dr. Kravitz highlights the rapid onset of symptoms and advises seeking medical attention if they persist. Antiviral drugs like Tamiflu and Xofluza are effective against current strains if taken early in the infection.
The CDC estimates there have been 4.6 million flu cases across the U.S. since this season began, and 1,900 patients have died from it, including at least three children.
