{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T02:44:06Z","timestamp":1790131446972,"version":"4.0.1"},"reference-count":63,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2022,1,25]],"date-time":"2022-01-25T00:00:00Z","timestamp":1643068800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Federal Ministry of Education and Research (BMBF)","award":["01KI1727D and 01KI1727F"],"award-info":[{"award-number":["01KI1727D and 01KI1727F"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Antibiotics"],"abstract":"<jats:p>A total of 215 isolates from infections of dogs and cats, including 49 Enterococcus faecalis, 37 Enterococcus faecium, 59 Escherichia coli, 56 Pseudomonas aeruginosa, and 14 Acinetobacter baumannii, were investigated for their susceptibility to 27 (Gram-positive bacteria) or 20 (Gram-negative bacteria) antimicrobial agents\/combinations of antimicrobial agents by broth microdilution according to the recommendations of the Clinical and Laboratory Standards Institute. Moreover, all isolates were analysed for their susceptibility to the biocides benzalkonium chloride, chlorhexidine, polyhexanide, and octenidine by a recently published broth microdilution biocide susceptibility testing method. While the E. faecalis isolates did not show expanded resistances, considerable numbers of the E. faecium isolates were resistant to penicillins, macrolides, tetracyclines, and fluoroquinolones. Even a single vancomycin-resistant isolate that carried the vanA gene cluster was detected. Expanded multiresistance phenotypes were also detected among the E. coli isolates, including a single carbapenem-resistant, blaOXA-48-positive isolate. In addition, multiresistant A. baumannii isolates were detected. The minimal inhibitory concentrations of the biocides showed unimodal distributions but differed with respect to the biocide and the bacterial species investigated. Although there were no indications of a development of biocide resistance, some P. aeruginosa isolates exhibited benzalkonium MICs higher than the highest test concentration.<\/jats:p>","DOI":"10.3390\/antibiotics11020152","type":"journal-article","created":{"date-parts":[[2022,1,25]],"date-time":"2022-01-25T20:44:33Z","timestamp":1643143473000},"page":"152","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":31,"title":["Antimicrobial and Biocide Resistance among Canine and Feline Enterococcus faecalis, Enterococcus faecium, Escherichia coli, Pseudomonas aeruginosa, and Acinetobacter baumannii Isolates from Diagnostic Submissions"],"prefix":"10.3390","volume":"11","author":[{"given":"Andrea T.","family":"Fe\u00dfler","sequence":"first","affiliation":[{"name":"Institute of Microbiology and Epizootics, Centre for Infection Medicine, Department of Veterinary Medicine, Freie Universit\u00e4t Berlin, 14163 Berlin, Germany"},{"name":"Veterinary Centre for Resistance Research (TZR), Freie Universit\u00e4t Berlin, 14163 Berlin, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anissa D.","family":"Scholtzek","sequence":"additional","affiliation":[{"name":"Institute of Microbiology and Epizootics, Centre for Infection Medicine, Department of Veterinary Medicine, Freie Universit\u00e4t Berlin, 14163 Berlin, Germany"},{"name":"Veterinary Centre for Resistance Research (TZR), Freie Universit\u00e4t Berlin, 14163 Berlin, Germany"},{"name":"Unit Bacterial Toxins, Food Service, Department Biological Safety, German Federal Institute for Risk Assessment, 10589 Berlin, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Angela R.","family":"Schug","sequence":"additional","affiliation":[{"name":"Institute of Microbiology and Epizootics, Centre for Infection Medicine, Department of Veterinary Medicine, Freie Universit\u00e4t Berlin, 14163 Berlin, Germany"},{"name":"Veterinary Centre for Resistance Research (TZR), Freie Universit\u00e4t Berlin, 14163 Berlin, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Barbara","family":"Kohn","sequence":"additional","affiliation":[{"name":"Veterinary Centre for Resistance Research (TZR), Freie Universit\u00e4t Berlin, 14163 Berlin, Germany"},{"name":"Small Animal Clinic, Department of Veterinary Medicine, Freie Universit\u00e4t Berlin, 14163 Berlin, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christiane","family":"Weingart","sequence":"additional","affiliation":[{"name":"Veterinary Centre for Resistance Research (TZR), Freie Universit\u00e4t Berlin, 14163 Berlin, Germany"},{"name":"Small Animal Clinic, Department of Veterinary Medicine, Freie Universit\u00e4t Berlin, 14163 Berlin, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dennis","family":"Hanke","sequence":"additional","affiliation":[{"name":"Institute of Microbiology and Epizootics, Centre for Infection Medicine, Department of Veterinary Medicine, Freie Universit\u00e4t Berlin, 14163 Berlin, Germany"},{"name":"Veterinary Centre for Resistance Research (TZR), Freie Universit\u00e4t Berlin, 14163 Berlin, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anne-Kathrin","family":"Schink","sequence":"additional","affiliation":[{"name":"Institute of Microbiology and Epizootics, Centre for Infection Medicine, Department of Veterinary Medicine, Freie Universit\u00e4t Berlin, 14163 Berlin, Germany"},{"name":"Veterinary Centre for Resistance Research (TZR), Freie Universit\u00e4t Berlin, 14163 Berlin, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0064-3909","authenticated-orcid":false,"given":"Astrid","family":"Bethe","sequence":"additional","affiliation":[{"name":"Institute of Microbiology and Epizootics, Centre for Infection Medicine, Department of Veterinary Medicine, Freie Universit\u00e4t Berlin, 14163 Berlin, Germany"},{"name":"Veterinary Centre for Resistance Research (TZR), Freie Universit\u00e4t Berlin, 14163 Berlin, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Antina","family":"L\u00fcbke-Becker","sequence":"additional","affiliation":[{"name":"Institute of Microbiology and Epizootics, Centre for Infection Medicine, Department of Veterinary Medicine, Freie Universit\u00e4t Berlin, 14163 Berlin, Germany"},{"name":"Veterinary Centre for Resistance Research (TZR), Freie Universit\u00e4t Berlin, 14163 Berlin, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6303-8212","authenticated-orcid":false,"given":"Stefan","family":"Schwarz","sequence":"additional","affiliation":[{"name":"Institute of Microbiology and Epizootics, Centre for Infection Medicine, Department of Veterinary Medicine, Freie Universit\u00e4t Berlin, 14163 Berlin, 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