Developing a selective culturing approach for Campylobacter hepaticus
Article
Article Title | Developing a selective culturing approach for Campylobacter hepaticus |
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ERA Journal ID | 39745 |
Article Category | Article |
Authors | Sakur, Sheaaz G. J., Williamson, Sarah L., Pavic, Anthony, Gao, Yuanshuo K., Harris, Taha, Kotiw, Michael, Muir, Wendy Isabelle and Groves, Peter John |
Journal Title | PLoS One |
Journal Citation | 19 (5) |
Article Number | e0302861 |
Number of Pages | 15 |
Year | 2024 |
Publisher | Public Library of Science (PLoS) |
Place of Publication | United States |
ISSN | 1932-6203 |
Digital Object Identifier (DOI) | https://doi.org/10.1371/journal.pone.0302861 |
Web Address (URL) | https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0302861 |
Abstract | Campylobacter hepaticus, the causative agent of Spotty Liver Disease (SLD) is an important disease in cage-free egg producing chickens causing mortality and production drops. C. hepaticus is a slow growing Campylobacter easily overgrown by fecal bacteria. It is currently only reliably isolatable from bile samples. A selective media for isolation from feces or environment would assist diagnosis and impact assessment. Growth of five Australian C. hepaticus isolates was studied using Horse blood agar (HBA), sheep blood agar (SBA), Bolton, Preston and Brain Heart Infusion (BHI) base media. Blood and/or bile were added to Bolton, Preston and BHI medias. C. jejuni was used as a positive control. Plates were incubated in duplicate under microaerophilic conditions at 42°C for 10 days and examined at days 3–5 and 7–10 of incubation. Each isolate was examined for sensitivity to 14 antimicrobials using HBA sensitivity plates. Growth was inhibited by BHI and by added bile, while blood improved growth. Further replicates using SBA, HBA, Bolton and Preston media showed best growth on Bolton agar with blood. All five C. hepaticus isolates were resistant to trimethoprim and vancomycin, while four were also resistant to rifampicin and bacitracin. Media based upon Bolton plus blood supplemented with vancomycin and trimethoprim might be used as the most appropriate media for selective growth of C. hepaticus. The addition of bile to media for C. hepaticus isolation and growth will inhibit growth and is not advised. |
Keywords | Campylobacter hepaticus; Spotty Liver Disease |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 320701. Medical bacteriology |
Byline Affiliations | University of Sydney |
Birling Avian Laboratories, Australia | |
University of Southern Queensland |
https://research.usq.edu.au/item/z83q4/developing-a-selective-culturing-approach-for-campylobacter-hepaticus
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