Assessing the impact of recreational water use on carriage of antimicrobial resistant organisms

Sci Total Environ. 2023 Aug 25:888:164201. doi: 10.1016/j.scitotenv.2023.164201. Epub 2023 May 15.

Abstract

Understanding the role of exposure to natural recreational waters in the acquisition and transmission of antimicrobial resistance (AMR) is an area of increasing interest. A point prevalence study was carried out in the island of Ireland to determine the prevalence of colonisation with extended-spectrum beta-lactamase-producing Enterobacterales (ESBL-PE) and carbapenem-resistant Enterobacterales (CRE) in recreational water users (WU) and matched controls. A total of 411 adult participants (199 WU, 212 controls) submitted at least one faecal sample between September 2020 - October 2021. In total, 80 Enterobacterales were isolated from 73 participants. ESBL-PE were detected in 29 (7.1 %) participants (7 WU, 22 controls), and CRE were detected in nine (2.2 %) participants (4 WU, 5 controls). No carbapenemase-producing Enterobacterales (CPE) were detected. WU were significantly less likely to harbour ESBL-PE than controls (risk ratio = 0.34, 95 % CI 0.148 to 0.776, χ2 7.37, p = 0.007). This study demonstrates the occurrence of ESBL-PE and CRE in healthy participants in Ireland. Recreational exposure to bathing water in Ireland was associated with a decreased prevalence of colonisation with ESBL-PE and CRE.

Keywords: Antimicrobial resistance; Carbapenem resistance; Extended spectrum beta-lactamase; Public health; Recreational water.

MeSH terms

  • Adult
  • Anti-Bacterial Agents
  • Anti-Infective Agents*
  • Carbapenems
  • Enterobacteriaceae Infections* / epidemiology
  • Feces
  • Gammaproteobacteria*
  • Humans
  • Water
  • beta-Lactamases

Substances

  • Water
  • beta-Lactamases
  • Carbapenems
  • Anti-Infective Agents
  • Anti-Bacterial Agents