Whole‐genome sequencing links Clostridium ( Clostridioides ) difficile in a single hospital to diverse environmental sources in the community

S‐C Lim; D.A. Collins; K. Imwattana; D.R. Knight; S. Perumalsamy; N.M.R. Hain‐Saunders; P. Putsathit; D. Speers; T.V. Riley

doi:10.1111/jam.15408

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Whole‐genome sequencing links Clostridium ( Clostridioides ) difficile in a single hospital to diverse environmental sources in the community

Journal article

Peer reviewed

Whole‐genome sequencing links Clostridium ( Clostridioides ) difficile in a single hospital to diverse environmental sources in the community

S‐C Lim, D.A. Collins, K. Imwattana, D.R. Knight, S. Perumalsamy, N.M.R. Hain‐Saunders, P. Putsathit, D. Speers and T.V. Riley

Journal of Applied Microbiology, Vol.13(3), pp.1156-1168

2022

DOI: https://doi.org/10.1111/jam.15408

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Abstract

Aims To investigate if Clostridium (Clostridioides) difficile infection (CDI), traditionally thought of as hospital-acquired, can be genomically linked to hospital or community environmental sources, and to define possible importation routes from the community to the hospital. Methods and Results In 2019, C. difficile was isolated from 89/300 (29.7%) floor and 96/300 (32.0%) shoe sole samples at a tertiary hospital in Western Australia. Non-toxigenic C. difficile ribotype (RT) 010 predominated among floor (96.6%) and shoe sole (73.2%) isolates, while toxigenic RT 014/020 was most prevalent among contemporaneous clinical cases (33.0%) at the hospital. Whole-genome sequencing and high-resolution core genome single nucleotide polymorphism (cgSNP) analysis on C. difficile strains from hospital and community sources showed no clinical C. difficile RT 014/020 strains were genetically related, and evidence of frequent long-distance, multi-directional spread between humans, animals and the environment. In addition, cgSNP analysis of environmental RT 010 strains suggested transportation of C. difficile via shoe soles. Conclusions While C. difficile RT 014/020 appears to spread via routes outside the healthcare system, RT 010 displayed a pattern of possible importation from the community into the hospital. Significance and Impact of Study These findings suggest developing community-based infection prevention and control strategies could significantly lower rates of CDI in the hospital setting.

Details

Title: Whole‐genome sequencing links Clostridium ( Clostridioides ) difficile in a single hospital to diverse environmental sources in the community
Authors/Creators: S‐C Lim (Author/Creator)
D.A. Collins (Author/Creator) - Edith Cowan University
K. Imwattana (Author/Creator) - The University of Western Australia
D.R. Knight (Author/Creator) - The University of Western Australia
S. Perumalsamy (Author/Creator) - The University of Western Australia
N.M.R. Hain‐Saunders (Author/Creator) - Edith Cowan University
P. Putsathit (Author/Creator) - Edith Cowan University
D. Speers (Author/Creator) - The University of Western Australia
T.V. Riley (Author/Creator) - Edith Cowan University
Publication Details: Journal of Applied Microbiology, Vol.13(3), pp.1156-1168
Publisher: Wiley
Identifiers: 991005543112707891
Copyright: © 2022 Society for Applied Microbiology
Murdoch Affiliation: Centre for Biosecurity and One Health; Harry Butler Institute
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 1 Clinical & Life Sciences; 1.120 Inflammatory Bowel Diseases & Infections; 1.120.1133 Clostridium Infections
Web Of Science research areas: Biotechnology & Applied Microbiology; Microbiology
ESI research areas: Biology & Biochemistry