The LancetJun 19, 2026
Universal Flu Vaccine Candidate Shows Broad Protection in Early Trials
An experimental vaccine targeting a conserved viral protein produced immune responses against multiple influenza strains in a phase I study.

Unlike seasonal flu shots that must be reformulated annually, the candidate targets the hemagglutinin stalk, a region that mutates slowly. If successful, it could provide multi-year protection against diverse flu strains.
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