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Updated: Jan 22, 2026
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Development of a Larval Zebrafish Infection Model for Clostridioides difficile
Published on: February 14, 2020
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Clostridioides difficile in bat guano.
Petra Bandelj1, Tea Knapič2, Joyce Rousseau3
1Veterinary Faculty, University of Ljubljana, Ljubljana, SI-1115, Slovenia.
Summary
Bats carry Clostridioides difficile, a pathogen linked to human and animal diseases. While not a primary source, their presence may indicate environmental contamination with this bacteria.
Area of Science:
- Zoonotic disease research
- Microbiology
- Wildlife health
Background:
- Bats are reservoirs for various mammalian diseases.
- Pathogen transmission is facilitated by bat migration and colonial behavior.
- The environmental source of Clostridioides difficile (C. difficile) dissemination remains unclear.
Purpose of the Study:
- To investigate the prevalence of C. difficile in bat populations.
- To characterize C. difficile strains found in bats.
Main Methods:
- Fecal samples were collected from 93 bats during migration across Europe.
- Samples were tested for the presence of C. difficile.
- Identified C. difficile isolates were characterized by ribotyping.
Main Results:
- Clostridioides difficile was detected in 19.4% (18/93) of bat fecal samples.
- Identified ribotypes included 078, 056, and a novel ribotype, CDB3.
- Ribotypes 078 and 056 are known to be associated with human and animal infections.
Conclusions:
- The study identified C. difficile in bats, with some strains linked to known pathogens.
- Bats may serve as indicators of C. difficile environmental presence rather than a primary source.
- Further research is needed to understand the role of bats in C. difficile ecology.
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