How bad will the 2025-2026 flu season be? The exact timing, duration and severity of flu seasons vary each year and can only really be understood in retrospect, explains Robert Amler, MD, MMS, MBA, ...

Moderna’s mRNA flu vaccine gave more protection against illness than the standard flu shot in a phase 3 clinical trial, according to published results.

Can the flu shot cause the flu? You may be tempted to skip your flu shot this season because of scheduling issues, a fear of needles or another reason. But misconceptions and misinformation — ...

This fall, a federal vaccine advisory panel changed recommendations, saying Americans six months and older should discuss the risks and benefits with their health care providers. The move walked back ...

Flu is making people miserable from coast to coast, thanks in large part to a new strain called subclade K. That’s why infectious disease experts are telling people to run, not walk, to get this ...

The flu is straining hospitals and urgent cares across the United States, with the surge in infections driven by an aggressive new flu variant. Flu activity remains high in most parts of the country, ...

Jeb Teichman’s phone rang just before midnight. As a pediatrician, he has received many late-night emergency calls. This time, the call was about his 29-year-old son. Brent Teichmanhad been suffering ...

Limiting alcohol after a flu shot may reduce side effects and help your immune system respond better. Intense exercise right after vaccination can worsen soreness and fatigue, while moderate activity ...

The Moderna Inc. facility in Laval, Quebec, Canada, on Friday, Sept. 19, 2025. Moderna is producing made-in-Canada Covid-19 vaccines at plants in Laval and Cambridge, Ontario, Globe & Mail reports.

The efficacy of flu shots is not always the same and it’s not always optimal. Some years, they can reduce the risk of illness by as little as 20% to 30%. Messenger RNA technology, or mRNA, is widely ...