is a foodborne pathogen that can cause deadly severe listeriosis. While systematic review and meta-analysis are powerful tools for comprehensive analysis by pooling every related study, these approaches to contamination food have yet to be studied in South Korea. We aimed to identify high-risk foods in South Korea through a prevalence survey of retail food products for the first time. A total of 13,684 samples of 59 articles were used for meta-analysis through the systematic review, and the results were synthesized using a random-effects model considering the heterogeneity. The overall pooled prevalence was 2.26 % (95 % CI: 1.44–3.52 %). Among nine food categories, meat exhibited the highest prevalence at 8.32 % (95 % CI: 4.42–12.14 %) after sample size restriction. Specifically, a post-hoc sensitivity analysis was conducted to identify the prevalence difference among subgroups and the source of heterogeneity. Intriguingly, the analysis revealed chicken as the primary contributor to the elevated prevalence of , a key factor deriving the observed heterogeneity. This study carries significant implications for public health and food safety in Korea. Furthermore, knowledge of differences in prevalence levels in various foods will be able to be used as a predictive guideline for foodborne outbreaks.

中文翻译：

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对韩国食品中单核细胞增生李斯特氏菌流行情况的全面系统回顾和荟萃分析

是一种食源性病原体，可导致致命的严重李斯特菌病。虽然系统评价和荟萃分析是通过汇集所有相关研究进行综合分析的强大工具，但韩国尚未对这些污染食品的方法进行研究。我们的目的是首次通过零售食品的流行率调查来识别韩国的高风险食品。通过系统评价，共使用59篇文章的13,684个样本进行荟萃分析，并使用考虑异质性的随机效应模型合成结果。总体汇总患病率为 2.26%（95% CI：1.44–3.52%）。在九种食品类别中，样本量限制后，肉类的患病率最高，为 8.32%（95% CI：4.42–12.14%）。具体来说，进行了事后敏感性分析，以确定亚组之间的患病率差异和异质性来源。有趣的是，分析显示鸡肉是导致 流行率升高的主要因素，这是导致观察到的异质性的关键因素。这项研究对韩国的公共卫生和食品安全具有重大影响。此外，了解各种食品中流行水平的差异将能够用作食源性疫情的预测指南。