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Open AccessJournal ArticleDOI

Identification of viridans streptococci on the Minitek Miniaturised Differentiation System.

Y Holloway, +2 more
- 01 Nov 1979 - 
- Vol. 32, Iss: 11, pp 1168-1173
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TLDR
A total of 227 strains of viridans streptococci were simultaneously identified on the Minitek Miniaturised System (BBL) and by a conventional method according to Colman and Williams, finding the results to be in agreement with the conventional method.
Abstract
A total of 227 strains of viridans streptococci were simultaneously identified on the Minitek Miniaturised System (BBL) and by a conventional method according to Colman and Williams. The Minitek discs were each overlaid with a drop of sterile liquid paraffin, and the trays were incubated in GaSPak jars (BBL) with CO2 generator envelopes. Identification was possible three to four days earlier than with the conventional method. The results were found to be in agreement with the conventional method. Compared to the identification schemes of Cowan and Steel and of Facklam, the results were also in good agreement. Minor differences were found in the number of positive and negative results in those reactions that are variable in all three schemes.

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Citations
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Journal ArticleDOI

Identification of streptococci in a medical laboratory.

TL;DR: The API method, although it needed to be supplemented with additional tests, largely overcame the difficulty that pyogenic streptococci are usually identified by their serological reactions and that biochemical tests are used for the identification of the other strePTococci.
Journal ArticleDOI

The bacteria responsible for ureolysis in artificial dental plaque.

TL;DR: Urea metabolism in artificial plaque was due mainly to Strep.
Journal ArticleDOI

Differentiation of Streptococcus mutans and Streptococcus sobrinus via genotypic and phenotypic profiles from three different populations.

TL;DR: The capability of AP-PCR in differentiation of S. mutans from S. sobrinus was comparable to the CDF method, suggesting that either of these two approaches can and may serve as a viable alternative method to serotyping or biotyping of MS.
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Comparative evaluation of the API 20S and AutoMicrobic gram-positive identification systems for non-beta-hemolytic streptococci and aerococci.

TL;DR: The API 20S system and the GPI system were evaluated for their capacity to identify the non-beta-hemolytic streptococci and aerococci to the species level and both identified 79% of the same viridans strePTococci without the need for supplemental tests.
References
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Journal ArticleDOI

Physiological differentiation of viridans streptococci.

TL;DR: A key for the differentiation of human isolates of viridans streptococci is proposed and is proposed based on stable enzymatic reactions rather than on results of tolerance tests.
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Streptococci and aerococci associated with systemic infection in man.

TL;DR: Endocarditis increased in frequency with age, and showed an excess of males over females up to the age of 65 years, and was associated with brain abscess, meningitis, pleural empyema and a variety of intra-abdominal abscesses.
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Dextran-induced Agglutination of Streptococcus mutans, and Its Potential Role in the Formation of Microbial Dental Plaques

TL;DR: Glucose-grown washed cells of streptococci similar to Streptococcus mutans, which contain cell-bound dextransucrase, have been observed to agglutinate upon the addition of high molecular weight dextran, suggesting that this phenomenon may be of importance in the formation of strePTococcal dental plaques.
Journal ArticleDOI

A forty-year review of bacterial endocarditis in infancy and childhood.

TL;DR: A retrospective review of 149 episodes of bacterial endocarditis in 141 patients under 25 years of age at The Children's Hospital Medical Center from 1933 through June of 1972 demonstrates increasing survival and a distinct change in the frequency of underlying congenital heart disease and rheumatic heart disease.
Journal ArticleDOI

The predominant cultivable flora of carious plaque and carious dentine.

W.J. Loesche, +1 more
- 01 Jan 1973 - 
TL;DR: The quantitative recovery of bacteria from single localized sites, namely the interproximal plaque over a carious lesion and the underlying carious dentine, was undertaken.
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