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CC BY V4.0, Open Access
Journal article
Genomic Analysis of Clostridioides difficile Recovered from Horses in Western Australia
Microorganisms (Basel), Vol.11(7), 1743
2023
Abstract
Clostridioides difficile poses an ongoing threat as a cause of gastrointestinal disease in humans and animals. Traditionally considered a human healthcare-related disease, increases in community-associated C. difficile infection (CDI) and growing evidence of inter-species transmission suggest a wider perspective is required for CDI control. In horses, C. difficile is a major cause of diarrhoea and life-threatening colitis. This study aimed to better understand the epidemiology of CDI in Australian horses and provide insights into the relationships between horse, human and environmental strains. A total of 752 faecal samples from 387 Western Australian horses were collected. C. difficile was isolated from 104 (30.9%) horses without gastrointestinal signs and 19 (37.8%) with gastrointestinal signs. Of these, 68 (55.3%) harboured one or more toxigenic strains, including C. difficile PCR ribotypes (RTs) 012 (n = 14), 014/020 (n = 10) and 087 (n = 7), all prominent in human infection. Whole-genome analysis of 45 strains identified a phylogenetic cluster of 10 closely related C. difficile RT 012 strains of equine, human and environmental origin (0–62 SNP differences; average 23), indicating recent shared ancestry. Evidence of possible clonal inter-species transmission or common-source exposure was identified for a subgroup of three horse and one human isolates, highlighting the need for a One Health approach to C. difficile surveillance.
Details
- Title
- Genomic Analysis of Clostridioides difficile Recovered from Horses in Western Australia
- Authors/Creators
- Natasza M R Hain-SaundersDaniel R. KnightMieghan M BruceDavid P ByrneThomas V Riley
- Publication Details
- Microorganisms (Basel), Vol.11(7), 1743
- Publisher
- MDPI
- Identifiers
- 991005593569607891
- Copyright
- © 2023 by the authors.
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- Citation topics
- 1 Clinical & Life Sciences
- 1.120 Inflammatory Bowel Diseases & Infections
- 1.120.1133 Clostridium Infections
- Web Of Science research areas
- Microbiology
- ESI research areas
- Microbiology