The FDA is recommending that flu vaccines for the 2025-26 season be trivalent, protecting against two strains of influenza A ...

The U.S. Food and Drug Administration (FDA) has issued its recommendations to vaccine makers on which virus strains to select ...

A combination messenger RNA vaccine against COVID-19 and seasonal influenza stacked up well against currently recommended vaccines in a phase 3 trial, according to findings published in JAMA.

Virologists classify influenza viruses into 3 types: A, B, and C based on their antigenic properties. Type C causes a very mild respiratory illness or no symptoms at all and is not considered a ...

Is the flu vaccine less effective than hoped? Preliminary Cleveland Clinic research reveals a surprising result among vaccinated healthcare workers, but doctors caution about limitations.

It was later discovered that influenza viruses mutated leading to antigenic changes. Since 1973, the WHO has issued annual recommendations for the composition of the influenza vaccine based on ...