A Classification of the Klebsiella Group

Cowan, S. T.; Steel, Karl; Shaw, Constance; Duguid, J. P.

doi:10.1099/00221287-23-3-601

Cited by 86 publications

(51 citation statements)

References 28 publications

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“…Extended studies of the biochemical properties of Klebsiella strains have been made in the past by 0rskov (1955, 1957). Usually three or six biotypes are distinguished by biochemical typing (Cowan et al 1960;Edwards & Ewing, 1972). To subdivide Klebsiella strains into more distinct types for epidemiological purposes several authors have introduced biochemical typing schemes either by conventional test methods (Rennie & Duncan, 1974;Barr & Hogg, 1979;Haverkorn & Michel, 1979), or by commercially available biochemical test systems (de Silva & Rubin, 1977).…”

Section: Introductionmentioning

confidence: 99%

Biochemical and serological investigations on clinical isolates of klebsiella

Simoons-Smit¹,

Vught²,

Kanis³

et al. 1985

J. Hyg.

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SUMMARYA series of 925 clinical isolates of klebsiella was examined by serological and biochemical typing. To perform serological typing (capsular swelling) 77 capsular antisera were prepared, tested against the type strains and grouped in 13 pools. With this serotyping method 800 ofthe cultures were typable and 63 distinct types could be recognized.All strains were typable biochemically by means of the numerical coding system of the API-20E system supplemented by digits derived from 15 additional conventional biochemical tests. With the API-20E system 24 different biotypes could be distinguished whereas the combination of API-20E and the 15 additional tests produced 93 biotypes. Maximum discrimination of strains was achieved by the combination of serological and biochemical typing (256 bioserotypes). The reproducibility, typability and discriminating power of the biotyping system was not inferior to serotyping. For epidemiological purposes biotyping can replace serotyping of Klebsiella species, especially in laboratories less well equipped.

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Section: Introductionmentioning

confidence: 99%

Biochemical and serological investigations on clinical isolates of klebsiella

Simoons-Smit¹,

Vught²,

Kanis³

et al. 1985

J. Hyg.

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“…Klebsiella. (Brooke, 1951b;Lautrop, 1956;Cowan, Steel, Shaw & Duguid, 1960;Fife et al 1965;Slopek & Durlakowa, 1967;Kaluzewski, 1967. ) Difficulty was experienced in the identification of strains of this genus.…”

Section: Separate Taxamentioning

confidence: 99%

“…) Difficulty was experienced in the identification of strains of this genus. In Matrix 66 we included the taxa in the classification of Cowan et al (1960); however, we were unable to identify the majority of the strains. A numerical taxonomy study of 177 strains of the KlebsielZa and related groups (Bascomb et al 1971) was carried out and the taxa used in Matrix 68 were as follows: KlebsielZa aerogenes and K. oxytoca; K. pneumoniae; K. ozaenae; K. rhinoscleromatis; and an unnamed group of Klebsiella whose characteristics were described by Bascomb et al (1971).…”

Section: Separate Taxamentioning

confidence: 99%

Identification of Bacteria by Computer: Identification of Reference Strains

Bascomb

Lapage

Curtis

et al. 1973

Journal of General Microbiology

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SUMMARYThe results of the identification of 1079 reference strains of Gram-negative, aerobic, rod-shaped bacteria by a probabilistic method in a computer are given.Comparison of identification by conventional methods and by computer showed that 90.8 % of fermentative and 82.1 % of non-fermentative strains could be identified on the best available probability matrix. Many of these strains were atypical and had caused difficulty in identification in the medical diagnostic laboratory. The implications of various factors in successful computer identification are discussed and the results are given for each taxon by genus and species.

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“…The formation of three of these traditional taxa was based (Cowan et al 1960) mainly on the reactions to I 3 tests, I I of which were included in our study, while fimbriation and production of gas from lactose at 44" were not. Moreover, the incubation conditions for the methyl red and Voges-Proskauer tests as well as the method for detecting acetoin were different in the two studies.…”

Section: S Bascomb and Othersmentioning

confidence: 99%

Numerical Classification of the Tribe Klebsielleae

Bascomb¹,

Lapage²,

Willcox³

et al. 1971

Journal of General Microbiology

118

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SUMMARYA numerical classification study was carried out on I 77 strains of Klebsiella and related groups. Three methods of numerical classification were used : median sorting, single linkage cluster analysis and minimum spanning tree. All three contributed to the final decision on the taxa, but yielded substantially the same results. Of the three, the median sorting, if used alone, would have provided the most information.The validity of the genus Klebsiella was confirmed but the inclusion of the three recognized species of Enterobacter in one genus was not confirmed. The genus Klebsiella was divided into six taxa, one of which is proposed as K. mobilis synon. Enterobacter aerogenes. E. cloacae occupied a rank similar to that of the genus Klebsiella, while E. liquefaciens was most closely related to the genus Serratia and it is proposed to include it as S. liquefaciens. Enterobacter 'pigment&' was found to be closely related to Chromobacterium typhiyavum.

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A Classification of the Klebsiella Group

Cited by 86 publications

References 28 publications

Biochemical and serological investigations on clinical isolates of klebsiella

Biochemical and serological investigations on clinical isolates of klebsiella

Identification of Bacteria by Computer: Identification of Reference Strains

Numerical Classification of the Tribe Klebsielleae

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