Capnophilic Enterobacteriaceae

Sahuquillo-Arce, José Miguel; Chouman-Arcas, Rabab; Molina-Moreno, José Miguel; Hernández-Cabezas, Alicia; Frasquet-Artes, Juan; López-Hontangas, José Luís

doi:10.1016/j.diagmicrobio.2017.01.010

Cited by 12 publications

(2 citation statements)

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“…Whole genome sequencing analysis by the MiSeq® system (Illumina, San Diego, USA) was performed to inspect assumed genes that contained previously-reported causative mutations for the E. coli SCV phenotype ( hemB , menC , and lipA gene) [ 1 , 5 ], but no genetic mutational variations were observed between the two strains. The yadF gene was not present in either strain, which is consistent with previous reports about capnophilic E. coli strains [ 6 ].…”

Section: Case Reportsupporting

confidence: 92%

Urinary tract infection caused by a small colony variant form of capnophilic Escherichia coli leading to misidentification and non-reactions in antimicrobial susceptibility tests

Park

Nguyen

Pinto

et al. 2018

Antimicrob Resist Infect Control

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BackgroundSmall colony and capnophilic variant cases have been separately reported, but there has been no reports of their simultaneous presence in one isolate. We report a case of Escherichia coli with coexpressed small colony and capnophilic phenotypes causing misidentification in automated biochemical kits and non-reactions in antimicrobial susceptibility test cards.Case presentationAn 86-year-old woman developed urinary tract infection from a strain of Escherichia coli with SCV and capnophilic phenotypes in co-existence. This strain did not grow without the presence of CO2, and therefore proper identification from automated system was not possible. 16 s rRNA sequencing and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry was able to identify the bacteria.ConclusionAs these strains do not grow on culture parameters defined by CLSI or on automated systems, proper identification using alternative methods are necessary.

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Section: Case Reportsupporting

confidence: 92%

Urinary tract infection caused by a small colony variant form of capnophilic Escherichia coli leading to misidentification and non-reactions in antimicrobial susceptibility tests

Park

Nguyen

Pinto

et al. 2018

Antimicrob Resist Infect Control

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“…Sahuquillo-Arce et al (10) recently showed that the can gene of the 2 capnophilic E. coli strains cannot be detected by PCR. Likewise, the can gene of P. mirabilis NA2609 was undetectable by PCR, although the can genes of ATCC 29906 and the 2 clinical strains were amplifiable.…”

mentioning

confidence: 99%

Isolation of a Capnophilic and Extended-Spectrum β-Lactamase-Producing <i>Proteus mirabilis</i> Strain from the Urine of an Octogenarian Male Patient with Acute Pyelonephritis

et al. 2019

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Previous studies have reported the isolation of Escherichia coli and Proteus mirabilis from urine samples (1-3). In the present study, we successfully isolated capnophilic P. mirabilis capable of producing extended-spectrum β-lactamase (ESBL), a causative agent of acute pyelonephritis. In addition, the isolate was not capable of growing in modified Drigalski (BTB) (Kyokuto Pharmaceutical Ind., Tokyo, Japan) and or MacConkey agar media (Eiken Chemical Co., Ltd., Tokyo, Japan). The patient was an octogenarian Japanese male suffering from urinary tract infection with a body temperature ranging from 38 C to 40 C. The patient was admitted in June 2016 to Nakatsugawa Municipal General Hospital, Nakatsugawa, Japan because of fever (38.5 C). The ethical committee waived the need for written consent regarding the research of bacterial isolates; the personal data related to the clinical information were anonymized. Direct microscopy of the

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Oligotrophic Growth of Rhodococcus

Yoshida

2019

Microbiology Monographs

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Capnophilic Enterobacteriaceae

Cited by 12 publications

References 13 publications

Urinary tract infection caused by a small colony variant form of capnophilic Escherichia coli leading to misidentification and non-reactions in antimicrobial susceptibility tests

Urinary tract infection caused by a small colony variant form of capnophilic Escherichia coli leading to misidentification and non-reactions in antimicrobial susceptibility tests

Isolation of a Capnophilic and Extended-Spectrum β-Lactamase-Producing <i>Proteus mirabilis</i> Strain from the Urine of an Octogenarian Male Patient with Acute Pyelonephritis

Oligotrophic Growth of Rhodococcus

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