Increasing prevalence of a fluoroquinolone resistance mutation amongst Campylobacter jejuni isolates from four human infectious intestinal disease studies in the United Kingdom



Haldenby, Sam, Bronowski, Christina ORCID: 0000-0001-8089-4021, Nelson, Charlotte, Kenny, John, Martinez-Rodriguez, Carmen, Chaudhuri, Roy, Williams, Nicola J, Forbes, Ken, Strachan, Norval J, Pulman, Jane
et al (show 8 more authors) (2020) Increasing prevalence of a fluoroquinolone resistance mutation amongst Campylobacter jejuni isolates from four human infectious intestinal disease studies in the United Kingdom. PLOS ONE, 15 (01). e0227535-.

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Abstract

Background: Campylobacter jejuni is the most common bacterial cause of human infectious intestinal disease. Methods: We genome sequenced 601 human C. jejuni isolates, obtained from two large prospective studies of infectious intestinal disease (IID1 [isolates from 1993–1996; n = 293] and IID2 [isolates from 2008–2009; n = 93]), the INTEGRATE project [isolates from 2016–2017; n = 52] and the ENIGMA project [isolates from 2017; n = 163]. Results: There was a significant increase in the prevalence of the T86I mutation conferring resistance to fluoroquinolone between each of the three later studies (IID2, INTEGRATE and ENIGMA) and IID1. Although the distribution of major multilocus sequence types (STs) was similar between the studies, there were changes in both the abundance of minority STs associated with the T86I mutation, and the abundance of clones within single STs associated with the T86I mutation. Discussion: Four population-based studies of community diarrhoea over a 25 year period revealed an increase over time in the prevalence of the T86I amongst isolates of C. jejuni associated with human gastrointestinal disease in the UK. Although associated with many STs, much of the increase is due to the expansion of clones associated with the resistance mutation.

Item Type: Article
Uncontrolled Keywords: Humans, Campylobacter jejuni, Intestinal Diseases, Fluoroquinolones, Prevalence, Phylogeny, Drug Resistance, Bacterial, Mutation, Polymorphism, Single Nucleotide, Genome, Bacterial, Child, United Kingdom
Depositing User: Symplectic Admin
Date Deposited: 06 Feb 2020 10:54
Last Modified: 19 Jan 2023 00:04
DOI: 10.1371/journal.pone.0227535
Open Access URL: http://doi.org/10.1371/journal.pone.0227535
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3073769