Joseph Chow, MD
The 2025 flu season is in full swing, and CDC is reporting high levels of flu throughout most of the U.S. Flu A (H1N1 and H3N2) are the predominant strains circulating this respiratory season. No doubt you know someone (or yourself) who has had it.
Flu symptoms include sudden onset of fever, chills, muscle aches, headache, nasal congestion, sore throat and cough. In addition to flu, other viruses, such as COVID, RSV, and bacterial infections, such as strep throat or pneumonia, may have similar symptoms.
Antiviral prescription medicines may be used to treat the flu. They are most effective when taken within 48 hours of symptoms and are typically given to patients at higher risk, such as those with chronic medical conditions, young children under 2 years old, pregnant women and those who are immunocompromised. Flu shots are still the most effective tool to protect against the flu, and it’s not too late in the season to receive it. Regular handwashing and staying home if you are sick helps in reducing the spread.
If you believe you have the flu and may be a candidate for treatment, the earlier you see a provider the better given the antiviral timeframe. If you need to be seen by a clinician for flu or other respiratory illness, you may find a center here.