Abstract:
:Campylobacter jejuni, a major cause of bacterial foodborne illnesses, is considered highly susceptible to environmental stresses. In this study, we extensively investigated the stress tolerance of 121 clinical strains of C. jejuni against 5 stress conditions (aerobic stress, disinfectant exposure, freeze-thaw, heat treatment, and osmotic stress) that this pathogenic bacterium might encounter during foodborne transmission to humans. In contrast to our current perception about high stress sensitivity of C. jejuni, a number of clinical strains of C. jejuni were highly tolerant to multiple stresses. We performed population genetics analysis by using comparative genomic fingerprinting and showed that multistress-tolerant strains of C. jejuni constituted distinct clades. The comparative genomic fingerprinting subtypes belonging to multistress-tolerant clades were more frequently implicated in human infections than those in stress-sensitive clades. We identified unique stress-tolerant C. jejuni clones and showed the role of stress tolerance in human campylobacteriosis.
journal_name
Emerg Infect Disjournal_title
Emerging infectious diseasesauthors
Oh E,Chui L,Bae J,Li V,Ma A,Mutschall SK,Taboada EN,McMullen LM,Jeon Bdoi
10.3201/eid2406.171587subject
Has Abstractpub_date
2018-06-01 00:00:00pages
1037-1044issue
6eissn
1080-6040issn
1080-6059journal_volume
24pub_type
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