{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T02:48:00Z","timestamp":1780454880990,"version":"3.54.1"},"reference-count":46,"publisher":"Public Library of Science (PLoS)","issue":"3","license":[{"start":{"date-parts":[[2021,3,24]],"date-time":"2021-03-24T00:00:00Z","timestamp":1616544000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100015390","name":"University of Franche-Comt\u00e9","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100015390","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:p>The worldwide spread of <jats:italic>Klebsiella pneumoniae<\/jats:italic> producing extended-spectrum \u03b2-lactamase (ESBL-Kp) is a significant threat. Specifically, various pandemic clones of ESBL-Kp are involved in hospital outbreaks and caused serious infections. In that context, we assessed the phenotypic and molecular features of a collection of ESBL-Kp isolates in a French university hospital and evaluated the occurrence of potential cross-transmissions. Over a 2-year period (2017\u20132018), 204 non-duplicate isolates of ESBL-Kp were isolated from clinical (n = 118, 57.8%) or screening (n = 86, 42.2%) sample cultures. These isolates were predominantly resistant to cotrimoxazole (88.8%) and ofloxacin (82.8%) but remained susceptible to imipenem (99.3%) and amikacin (93.8%). CTX-M-15 was the most frequent ESBL identified (83.6%). Multilocus sequence typing and pulse-field gel electrophoresis analysis showed an important genetic variability with 41 sequence types (ST) and 50 pulsotypes identified, and the over representation of the international epidemic clones ST307 and ST405. An epidemiological link attesting probable cross-transmission has been identified for 16 patients clustered in 4 groups during the study period. In conclusion, we showed here the dissemination of pandemic clones of ESBL-Kp in our hospital on a background of clonal diversity.<\/jats:p>","DOI":"10.1371\/journal.pone.0247875","type":"journal-article","created":{"date-parts":[[2021,3,24]],"date-time":"2021-03-24T17:41:39Z","timestamp":1616607699000},"page":"e0247875","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":23,"title":["ESBL-producing Klebsiella pneumoniae in a University hospital: Molecular features, diffusion of epidemic clones and evaluation of cross-transmission"],"prefix":"10.1371","volume":"16","author":[{"given":"Pierre Edwige L.","family":"Fils","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pascal","family":"Cholley","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Houssein","family":"Gbaguidi-Haore","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Didier","family":"Hocquet","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4734-1075","authenticated-orcid":true,"given":"Marl\u00e8ne","family":"Sauget","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xavier","family":"Bertrand","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2021,3,24]]},"reference":[{"key":"pone.0247875.ref001","doi-asserted-by":"crossref","first-page":"657","DOI":"10.1128\/CMR.18.4.657-686.2005","article-title":"Extended-spectrum \u03b2-lactamases: a clinical update","volume":"18","author":"DL Paterson","year":"2005","journal-title":"Clin Microbiol Rev"},{"key":"pone.0247875.ref002","doi-asserted-by":"crossref","first-page":"159","DOI":"10.1016\/S1473-3099(08)70041-0","article-title":"Extended-spectrum \u03b2-lactamase-producing Enterobacteriaceae: an emerging public-health concern","volume":"8","author":"JD Pitout","year":"2008","journal-title":"Lancet Infect Dis"},{"key":"pone.0247875.ref003","doi-asserted-by":"crossref","first-page":"819","DOI":"10.2217\/fmb.15.16","article-title":"The complex epidemiology of extended-spectrum \u03b2-lactamase-producing Enterobacteriaceae","volume":"10","author":"R Tal Jasper","year":"2015","journal-title":"Future Microbiol"},{"key":"pone.0247875.ref004","doi-asserted-by":"crossref","first-page":"5873","DOI":"10.1128\/AAC.01019-15","article-title":"Carbapenemase-producing Klebsiella pneumoniae, a key pathogen set for global nosocomial dominance","volume":"59","author":"JD Pitout","year":"2015","journal-title":"Antimicrob Agents Chemother"},{"key":"pone.0247875.ref005","unstructured":"World Health Organisation. 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