{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,14]],"date-time":"2026-07-14T14:10:17Z","timestamp":1784038217003,"version":"3.55.0"},"reference-count":57,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2020,12,23]],"date-time":"2020-12-23T00:00:00Z","timestamp":1608681600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Cell. Infect. Microbiol."],"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>The prevalence of <jats:italic>Clostridium difficile<\/jats:italic> causes an increased morbidity and mortality of inpatients, especially in Europe and North America, while data on <jats:italic>C. difficile<\/jats:italic> infection (CDI) are limited in China.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>From September 2014 to August 2019, 562\u00a0<jats:italic>C. difficile<\/jats:italic> isolates were collected from patients and screened for toxin genes. Multilocus sequence typing (MLST) and antimicrobial susceptibility tests by E-test and agar dilution method were performed. A case group composed of patients infected with sequence type (ST) 81\u00a0<jats:italic>C. difficile<\/jats:italic> was compared to the non-ST81 infection group and non CDI diarrhea patients for risk factor and outcome analyses.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The incidence of inpatients with CDI was 7.06 cases per 10,000 patient-days. Of the 562\u00a0C<jats:italic>. difficile<\/jats:italic> isolates, ST81(22.78%) was the predominant clone over this period, followed by ST54 (11.21%), ST3 (9.61%), and ST2 (8.72%). Toxin genotype <jats:italic>tcdA+tcdB+cdt-<\/jats:italic> accounted for 50.18% of all strains, while 29.54% were <jats:italic>tcdA-tcdB+cdt-<\/jats:italic> genotypes. Overall, no isolate was resistant to vancomycin, teicoplanin or daptomycin, and resistance rates to meropenem gradually decreased during these years. Although several metronidazole-resistant strains were isolated in this study, the MIC values decreased during this period. Resistance rates to moxifloxacin and clindamycin remained higher than those to the other antibiotics. Among CDI inpatients, longer hospitalization, usage of prednisolone, suffering from chronic kidney disease or connective tissue diseases and admission to emergency ward 2 or emergency ICU were significant risk factors for ST81 clone infection. All-cause mortality of these CDI patients was 4.92%(n=18), while the recurrent cases accounted for 5.74%(n=21). The 60-day mortality of ST81-CDI was significantly higher than non-ST81 infected group, while ST81 also accounted for most of the recurrent CDI cases.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>This study revealed the molecular epidemiology and risk factors for the dominant <jats:italic>C. difficile<\/jats:italic> ST81 genotype infection in eastern China. Continuous and stringent surveillance on the emerging ST81 genotype needs to be initiated.<\/jats:p><\/jats:sec>","DOI":"10.3389\/fcimb.2020.578098","type":"journal-article","created":{"date-parts":[[2020,12,23]],"date-time":"2020-12-23T06:51:29Z","timestamp":1608706289000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":22,"title":["Molecular Epidemiology and Risk Factors of Clostridium difficile ST81 Infection in a Teaching Hospital in Eastern China"],"prefix":"10.3389","volume":"10","author":[{"given":"Ziyu","family":"Yang","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qian","family":"Huang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juanxiu","family":"Qin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaoye","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ying","family":"Jian","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huiying","family":"Lv","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qian","family":"Liu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Min","family":"Li","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2020,12,23]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"21","DOI":"10.1016\/j.anaerobe.2018.03.001","article-title":"Binary Clostridium difficile toxin (CDT) - A virulence factor disturbing the cytoskeleton","volume":"53","author":"Aktories","year":"2018","journal-title":"Anaerobe"},{"key":"B2","doi-asserted-by":"publisher","first-page":"2517","DOI":"10.1017\/s0950268816000935","article-title":"Increasing incidence of Clostridium difficile infections: results from a 5-year retrospective study in a large teaching hospital in the Italian region with the oldest population","volume":"144","author":"Alicino","year":"2016","journal-title":"Epidemiol. 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