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Prevalence and diversity of Chlamydiales in Swiss ruminant farms

Dreyer, Margaux ; Aeby, Sébastien ; Oevermann, Anna ; Greub, Gilbert

In: Pathogens and Disease, 2015, vol. 73, no. 1, p. 1-4

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    Titre
    • Prevalence and diversity of Chlamydiales in Swiss ruminant farms
    Auteur
    • Dreyer, Margaux. NeuroCenter, Division of Neurological Sciences, DCR-VPH, Vetsuisse Faculty, University of Bern, Bremgartenstrasse 109a, CH-3001 Bern, Switzerland
    • Aeby, Sébastien. Institute of Microbiology, University Hospital Center and University of Lausanne, Bugnon 48, CH-1011 Lausanne, Switzerland
    • Oevermann, Anna. NeuroCenter, Division of Neurological Sciences, DCR-VPH, Vetsuisse Faculty, University of Bern, Bremgartenstrasse 109a, CH-3001 Bern, Switzerland
    • Greub, Gilbert. Institute of Microbiology, University Hospital Center and University of Lausanne, Bugnon 48, CH-1011 Lausanne, Switzerland
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Pathogens and Disease, 2015, vol. 73, no. 1, p. 1-4. Oxford University Press
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:300800
    Summary
    Chlamydia and Chlamydia-related bacteria are known to infect various organisms and may cause a wide range of diseases, especially in ruminants. To gain insight into the prevalence of these bacteria in the ruminant environment, we applied a pan-Chlamydiales PCR followed by sequencing to 72 ruminant environmental samples from water, feed bunks and floors. Chlamydiales from four family-level lineages were detected indicating a high biodiversity of Chlamydiales in ruminant farms. Parachlamydiaceae were detected in all three types of environmental samples and was the most abundant family-level taxon (60%). In contrast, only one bacterium from each of the following family-level lineages was identified: Chlamydiaceae, Criblamydiaceae and Simkaniaceae. The observed high prevalence of Parachlamydiaceae in water samples may suggest water as the main source of contamination for ruminants as well as their environment due to spoilage. The absence of reported infections in the investigated ruminant farms might indicate that either detected Chlamydiales are of reduced pathogenicity or infective doses have not been reached