Further modification of the Hodge test to screen AmpC β-lactamase (CMY-1)-producing strains of Escherichia coli and Klebsiella pneumoniae

Dongeun Yong, Rojin Park, Jong Hwa Yum, Kyungwon Lee, Eung Chil Choi, Yunsop Chong

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Cefoxitin-resistant Escherichia coli and Klebsiella pneumoniae are widespread in Korea. Significant proportions of them are considered to be CMY-1 producers. For effective screening of CMY-1 producers, the Hodge test was modified by using a cefoxitin disk and the performance was evaluated. The sensitivity and specifity of the test were 100% and 94.9%, respectively. The test was easier to perform than the three-dimensional extract test. This modified test should be suitable for screening CMY-1-producing strains of E. coli and K. pneumoniae.

Original languageEnglish
Pages (from-to)407-410
Number of pages4
JournalJournal of Microbiological Methods
Issue number3
Publication statusPublished - 2002 Nov 1


All Science Journal Classification (ASJC) codes

  • Microbiology
  • Molecular Biology
  • Microbiology (medical)

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