A contagious new COVID-19 variant called NB.1.8.1, aka "Nimbus," is now dominant in the United States, CDC data show. What to ...

Moderna's new flu vaccine, based on the same mRNA technology used in its COVID-19 shot, showed promising results in a major ...

When the seasonal flu strikes, most people expect the familiar lineup of fever, aches and congestion. But for many patients, dizziness emerges as an ...

Moderna's mRNA flu vaccine showed 26.6% better efficacy than a standard flu shot in adults 50 and older during a global Phase ...

A multi-state study reveals that many high-risk adults diagnosed with influenza (flu) in emergency departments and urgent care centers are not receiving timely antiviral treatment. Researchers ...

The Study and Findings In the present study, researchers reviewed the literature on keto-flu regarding its underlying physiological symptoms and evidence for symptom alleviation and treatment ...

Other symptoms include chills, severe headache, sore throat, cough, chest discomfort, and a stuffy or runny nose. Flu also brings muscle aches and extreme fatigue.

In people, avian flu symptoms resemble those of seasonal flu and can range from mild to severe, sometimes turning deadly. Symptoms also may include conjunctivitis — eye irritation and redness.

Similarly, early 2024-25 data from the U.S. shows that the vaccine was 41% to 55% effective against flu hospitalizations in adults and 63% to 78% effective against flu hospitalizations in children.

In adults 65 years and older, the group with the greatest risk of hospitalization and death, flu vaccination rates dropped from 52% in 2019-20 to 43% in 2024-25.

In adults 65 years and older, the group with the greatest risk of hospitalization and death, flu vaccination rates dropped from 52% in 2019-20 to 43% in 2024-25.