Prevalence of Non-Typhoidal Salmonella Across One Health Sources in Asia, Europe, and Africa (2016–2025): A Multilevel Subgroup Meta-Analysis

This component contains the prospectively registered protocol for a systematic review and meta-analysis entitled: “One Health prevalence of non-typhoidal Salmonella in humans, animals, food, and the environment across Asia, Europe, and Africa (2016–2025)”. At the time of registration, no study selection, data extraction, or statistical analysis has been initiated. The protocol is registered to ensure transparency, prevent selective reporting, and support reproducibility. Any protocol amendments will be documented with justification and date.