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Association Between Minimum Temperature and Carbapenem-Resistant Enterobacteriaceae Infections in South Korea, 2018-2021: A Retrospective Time-Series Analysis

Kim, J.; MacFadden, D. R.; Chun, B. C.; Santillana, M.

2025-09-12 epidemiology
10.1101/2025.09.10.25335271 medRxiv
Show abstract

Carbapenem-resistant Enterobacteriaceae (CRE) infections pose a major public health threat with limited treatment options and high mortality. Using national surveillance data from South Korea (2018-2021), we conducted a time-series analysis to assess associations between monthly CRE incidence, minimum temperature, and meropenem usage. A 10{degrees}C rise in minimum temperature was associated with a 9.4% increase in CRE incidence (95% Confidence Interval: 5.0-13.9%). Findings suggest temperature as an environmental driver of antimicrobial resistance, supporting integration of climate data into surveillance.

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