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Article: Streptococcus sinensis may react with Lancefield group F antiserum
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TitleStreptococcus sinensis may react with Lancefield group F antiserum
 
AuthorsWoo, PCY1
Teng, JLL1
Leung, KW1
Lau, SKP1
Tse, H1
Wong, BHL1
Yuen, KY1
 
Issue Date2004
 
PublisherSociety for General Microbiology. The Journal's web site is located at http://jmm.sgmjournals.org
 
CitationJournal Of Medical Microbiology, 2004, v. 53 n. 11, p. 1083-1088 [How to Cite?]
DOI: http://dx.doi.org/10.1099/jmm.0.45745-0
 
AbstractLancefield group F streptococci have been found almost exclusively as members of the 'Streptococcus miller' group, although they have been reported very occasionally in some other streptococcal species. Among 302 patients with bacteraemia caused by viridans streptococci over a 6-year period, three cases were caused by Streptococcus sinensis (type strain HKU4T, HKU5 and HKU6). All three patients had infective endocarditis complicating their underlying chronic rheumatic heart diseases. Gene sequencing showed no base differences between the 16S rRNA gene sequences of HKU5 and HKU6 and that of HKU4T. All three strains were Gram-positive, non-spore-forming cocci arranged in chains. All grew on sheep blood agar as α-haemolytic, grey colonies of 0·5-1 mm in diameter after 24 h incubation at 37 °C in ambient air. Lancefield grouping revealed that HKU5 and HKU6 were Lancefield group F, but HKU4T was non-groupable with Lancefield groups A, B, C, D, F or G antisera. HKU4T was identified by the Vitek system (GPI), API system (20 STREP) and ATB system (ID32 STREP) as 99% Streptococcus intermedius, 51·3% S. intermedius and 99·9% Streptococcus anginosus, respectively. Using the same tests, HKU5 was identified as 87% Streptococcus sanguinis/Streptococcus gordonii, 59% Streptococcus salivarius and 99·6% S. anginosus, respectively, and HKU6 as 87% S. sanguinis/S. gordonii, 77% Streptococcus pneumoniae and 98-3% S. anginosus, respectively. The present data revealed that a proportion of Lancefield group F streptococci could be S. sinensis. Lancefield group F streptococci should not be automatically reported as 'S. miller'.
 
ISSN0022-2615
2013 Impact Factor: 2.266
2013 SCImago Journal Rankings: 1.025
 
DOIhttp://dx.doi.org/10.1099/jmm.0.45745-0
 
ISI Accession Number IDWOS:000225112500005
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorWoo, PCY
 
dc.contributor.authorTeng, JLL
 
dc.contributor.authorLeung, KW
 
dc.contributor.authorLau, SKP
 
dc.contributor.authorTse, H
 
dc.contributor.authorWong, BHL
 
dc.contributor.authorYuen, KY
 
dc.date.accessioned2010-09-06T07:49:10Z
 
dc.date.available2010-09-06T07:49:10Z
 
dc.date.issued2004
 
dc.description.abstractLancefield group F streptococci have been found almost exclusively as members of the 'Streptococcus miller' group, although they have been reported very occasionally in some other streptococcal species. Among 302 patients with bacteraemia caused by viridans streptococci over a 6-year period, three cases were caused by Streptococcus sinensis (type strain HKU4T, HKU5 and HKU6). All three patients had infective endocarditis complicating their underlying chronic rheumatic heart diseases. Gene sequencing showed no base differences between the 16S rRNA gene sequences of HKU5 and HKU6 and that of HKU4T. All three strains were Gram-positive, non-spore-forming cocci arranged in chains. All grew on sheep blood agar as α-haemolytic, grey colonies of 0·5-1 mm in diameter after 24 h incubation at 37 °C in ambient air. Lancefield grouping revealed that HKU5 and HKU6 were Lancefield group F, but HKU4T was non-groupable with Lancefield groups A, B, C, D, F or G antisera. HKU4T was identified by the Vitek system (GPI), API system (20 STREP) and ATB system (ID32 STREP) as 99% Streptococcus intermedius, 51·3% S. intermedius and 99·9% Streptococcus anginosus, respectively. Using the same tests, HKU5 was identified as 87% Streptococcus sanguinis/Streptococcus gordonii, 59% Streptococcus salivarius and 99·6% S. anginosus, respectively, and HKU6 as 87% S. sanguinis/S. gordonii, 77% Streptococcus pneumoniae and 98-3% S. anginosus, respectively. The present data revealed that a proportion of Lancefield group F streptococci could be S. sinensis. Lancefield group F streptococci should not be automatically reported as 'S. miller'.
 
dc.description.natureLink_to_subscribed_fulltext
 
dc.identifier.citationJournal Of Medical Microbiology, 2004, v. 53 n. 11, p. 1083-1088 [How to Cite?]
DOI: http://dx.doi.org/10.1099/jmm.0.45745-0
 
dc.identifier.doihttp://dx.doi.org/10.1099/jmm.0.45745-0
 
dc.identifier.epage1088
 
dc.identifier.hkuros100177
 
dc.identifier.isiWOS:000225112500005
 
dc.identifier.issn0022-2615
2013 Impact Factor: 2.266
2013 SCImago Journal Rankings: 1.025
 
dc.identifier.issue11
 
dc.identifier.openurl
 
dc.identifier.pmid15496384
 
dc.identifier.scopuseid_2-s2.0-11144224250
 
dc.identifier.spage1083
 
dc.identifier.urihttp://hdl.handle.net/10722/78983
 
dc.identifier.volume53
 
dc.languageeng
 
dc.publisherSociety for General Microbiology. The Journal's web site is located at http://jmm.sgmjournals.org
 
dc.publisher.placeUnited Kingdom
 
dc.relation.ispartofJournal of Medical Microbiology
 
dc.relation.referencesReferences in Scopus
 
dc.subject.meshBacteremia - microbiology
 
dc.subject.meshDNA, Bacterial - chemistry - isolation & purification
 
dc.subject.meshDNA, Ribosomal - chemistry - isolation & purification
 
dc.subject.meshEndocarditis, Bacterial - microbiology
 
dc.subject.meshGenes, rRNA - genetics
 
dc.subject.meshGentian Violet
 
dc.subject.meshGram-Positive Cocci
 
dc.subject.meshHemolysis
 
dc.subject.meshHumans
 
dc.subject.meshMolecular Sequence Data
 
dc.subject.meshPhenazines
 
dc.subject.meshPhylogeny
 
dc.subject.meshRNA, Bacterial - genetics
 
dc.subject.meshRNA, Ribosomal, 16S - genetics
 
dc.subject.meshSequence Analysis, DNA
 
dc.subject.meshSerotyping
 
dc.subject.meshSpores, Bacterial
 
dc.subject.meshStreptococcal Infections - diagnosis - microbiology
 
dc.subject.meshViridans Streptococci - classification - cytology - immunology - physiology
 
dc.titleStreptococcus sinensis may react with Lancefield group F antiserum
 
dc.typeArticle
 
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<contributor.author>Lau, SKP</contributor.author>
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<description.abstract>Lancefield group F streptococci have been found almost exclusively as members of the &apos;Streptococcus miller&apos; group, although they have been reported very occasionally in some other streptococcal species. Among 302 patients with bacteraemia caused by viridans streptococci over a 6-year period, three cases were caused by Streptococcus sinensis (type strain HKU4T, HKU5 and HKU6). All three patients had infective endocarditis complicating their underlying chronic rheumatic heart diseases. Gene sequencing showed no base differences between the 16S rRNA gene sequences of HKU5 and HKU6 and that of HKU4T. All three strains were Gram-positive, non-spore-forming cocci arranged in chains. All grew on sheep blood agar as &#945;-haemolytic, grey colonies of 0&#183;5-1 mm in diameter after 24 h incubation at 37 &#176;C in ambient air. Lancefield grouping revealed that HKU5 and HKU6 were Lancefield group F, but HKU4T was non-groupable with Lancefield groups A, B, C, D, F or G antisera. HKU4T was identified by the Vitek system (GPI), API system (20 STREP) and ATB system (ID32 STREP) as 99% Streptococcus intermedius, 51&#183;3% S. intermedius and 99&#183;9% Streptococcus anginosus, respectively. Using the same tests, HKU5 was identified as 87% Streptococcus sanguinis/Streptococcus gordonii, 59% Streptococcus salivarius and 99&#183;6% S. anginosus, respectively, and HKU6 as 87% S. sanguinis/S. gordonii, 77% Streptococcus pneumoniae and 98-3% S. anginosus, respectively. The present data revealed that a proportion of Lancefield group F streptococci could be S. sinensis. Lancefield group F streptococci should not be automatically reported as &apos;S. miller&apos;.</description.abstract>
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Author Affiliations
  1. The University of Hong Kong