The Wild Mouse ( Micromys minutus ): Reservoir of a Novel Campylobacter jejuni Strain
is one of the most common zoonotic pathogens worldwide. Although the main sources of human infection are livestock, wildlife can also affect transmission in humans. However, it remains unclear whether wild mice harbor and are involved in the "environment-wildlife-livestock-human" transmiss...
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Published in | Frontiers in microbiology Vol. 10; p. 3066 |
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Main Authors | , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Switzerland
Frontiers Media S.A
14.01.2020
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Subjects | |
Online Access | Get full text |
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Summary: | is one of the most common zoonotic pathogens worldwide. Although the main sources of human
infection are livestock, wildlife can also affect
transmission in humans. However, it remains unclear whether wild mice harbor
and are involved in the "environment-wildlife-livestock-human" transmission cycle of
in humans. Here, we characterized
from wild mice and identified genetic traces of wild mouse-derived
in other hosts using a traditional approach, along with comparative genomics. We captured 115 wild mice (49
and 66
) without any clinical symptoms from 22 sesame fields in Korea over 2 years. Among them,
were typically caught in remote areas of human houses and
was solely isolated from
(42/66, 63.6%). We identified a single clone (MLST ST-8388) in all 42
isolates, which had not been previously reported, and all isolates had the same virulence/survival-factor profile, except for the plasmid-mediated
B11 gene. No isolates exhibited antibiotic resistance, either in phenotypic and genetic terms. Comparative-genomic analysis and MST revealed that
derived from
(strain SCJK2) was not genetically related to those derived from other sources (registered in the NCBI genome database and PubMLST database). Therefore, we hypothesize that
from
is a normal component of the gut flora following adaptation to the gastro-intestinal tract. Furthermore,
-derived
had different ancestral lineages from those derived from other sources, and there was a low chance of
transmission from
to humans/livestock because of their habitat. In conclusion,
may be a potential reservoir for a novel
, which is genetically different from those of other sources, but may not be involved in the transmission of
to other hosts, including humans and livestock. This study could form the basis for further studies focused on understanding the transmission cycle of
, as well as other zoonotic pathogens originating from wild mice. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 Reviewed by: Odile Tresse, INRA Centre Angers-Nantes Pays de la Loire, France; Angelika Lehner, University of Zurich, Switzerland; Rauni Kivistö, University of Helsinki, Finland This article was submitted to Infectious Diseases, a section of the journal Frontiers in Microbiology Edited by: Mattias Collin, Lund University, Sweden |
ISSN: | 1664-302X 1664-302X |
DOI: | 10.3389/fmicb.2019.03066 |