Universal Flu Vaccine Shows Promise in Human Trials

A universal flu vaccine that protects against all strains has shown strong results in phase 2 clinical trials. ## The Approach Unlike seasonal vaccines that target changing viral surfaces, this vaccine targets parts of the virus that remain constant across all strains. ## Trial Results Participants showed robust immune responses against multiple flu strains, with protection lasting at least three years in follow-up testing. ## Public Health Impact A universal vaccine could eliminate annual flu shots and provide protection against pandemic flu strains before they emerge. ## Timeline Phase 3 trials are underway, with potential approval within four years if results continue to be positive.