Public health leadership faces widening inequities, uneven life expectancy trends, and growing information disorder. Experience from COVID-19 showed that shortcomings often stem less from lack of evidence than from weaknesses in how evidence inform decisions. This commentary reframes the challenge as one of evidence governance: ensuring that knowledge is interpreted, debated, and translated into fair, accountable action. We introduce GUARD, a practice-oriented framework for governing evidence: Govern in public, User power-sharing, Architect and audit integrity, Resist manipulation of meaning, and Demonstrate legitimacy. Rather than proposing new principles, GUARD operationalizes existing ones into implementable governance routines, offering public health leaders a practical pathway to strengthen legitimacy, reduce inequities, and sustain trustworthiness under uncertainty.
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Geneviève Chêne
Marie Préau
Paulette Lenert
Public health reviews
SHILAP Revista de lepidopterología
Inserm
Aix-Marseille Université
Université de Bordeaux
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Chêne et al. (Fri,) studied this question.
www.synapsesocial.com/papers/69e7132bcb99343efc98cf36 — DOI: https://doi.org/10.3389/phrs.2026.1609645
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