From Question to Recommendation: Developing Evidence-Based Vaccine Guidelines Using PICO, Systematic Reviews, GRADE, and Evidence-to-Recommendation (EtR) Frameworks

From Question to Recommendation is a practical field guide to evidence-based vaccine guideline development, designed for clinicians, researchers, and public health professionals stepping into a guideline panel for the first time.

Structured as a series of conversations within a fictional vaccine guideline panel, this book walks readers through the complete methodology used to develop trustworthy clinical recommendations — from framing the right clinical question to communicating a recommendation clinicians can act on with confidence.

Readers will learn how to:

• Distinguish guideline development from individual clinical decision-making
• Determine which clinical questions are important, uncertain, and answerable enough to deserve a guideline
• Construct a precise, unambiguous PICO question
• Understand how systematic reviews reduce bias in evidence synthesis
• Apply GRADE to assess the certainty of evidence
• Use Evidence-to-Recommendation (EtR) frameworks to move from evidence to judgement
• Write recommendations that are clear, actionable, and consistently interpreted

Each chapter introduces a single concept, explains it in plain language, and grounds it in a realistic vaccine policy example — making complex methodology accessible without oversimplifying it.

This is not a statistics textbook or a GRADE manual. It is a concise, practical orientation for anyone preparing to contribute meaningfully to guideline panel work.