Antimicrobial resistance and AmpC production in ESBL-producing Klebsiella pneumoniae and Klebsiella quasipneumoniae: A retrospective study in Japanese clinical isolates

• Naoki Watanabe ,

  Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Resources, Visualization, Writing – original draft

  * E-mail: watanabe.naoki.4@kameda.jp

  Affiliations Department of Clinical Laboratory, Kameda Medical Center, Kamogawa, Chiba, Japan, Graduate School of Health Sciences, Hirosaki University, Hirosaki, Aomori, Japan

  https://orcid.org/0000-0001-8609-4981

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• Tomohisa Watari,

  Roles Methodology, Writing – review & editing

  Affiliation Department of Clinical Laboratory, Kameda Medical Center, Kamogawa, Chiba, Japan

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• Yoshihito Otsuka,

  Roles Methodology, Project administration, Writing – review & editing

  Affiliation Department of Clinical Laboratory, Kameda Medical Center, Kamogawa, Chiba, Japan

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• Masahiko Ito,

  Roles Investigation, Methodology, Writing – review & editing

  Affiliation Sapporo Clinical Laboratory Inc., Chuo-ku, Sapporo, Hokkaido, Japan

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• Kazufumi Yamagata,

  Roles Methodology, Writing – review & editing

  Affiliation Graduate School of Health Sciences, Hirosaki University, Hirosaki, Aomori, Japan

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• Miyuki Fujioka

  Roles Formal analysis, Methodology, Supervision, Validation, Writing – review & editing

  Affiliation Graduate School of Health Sciences, Hirosaki University, Hirosaki, Aomori, Japan

  https://orcid.org/0000-0002-6872-5943

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