An mRNA-based flu shot could make a huge difference in flu prevention, allowing scientists to pick a better strain match.

NEW YORK -- As the U.S. flu season winds down, health officials say the flu vaccine wasn't very effective, with one of its worst effectiveness rates in more than a decade. A new strain that dominated ...

In a large study of 429,595 adults aged 65 years or older, adjuvanted and high-dose influenza vaccines showed no significant ...

Influenza vaccines were effective in preventing related hospitalizations and outpatient visits among U.S. kids in recent years, but vaccine uptake remained low. Vaccine effectiveness against ...