Literature DB >> 15814987

Analysis of the genetic structure of nontypeable pneumococcal strains isolated from conjunctiva.

Sonsoles Berrón1, Asunción Fenoll, Montserrat Ortega, Noemí Arellano, Julio Casal.   

Abstract

More than 50% of the nontypeable (NT) pneumococcal strains received in our laboratory for reference purposes are isolated in sporadic cases of conjunctivitis. To determine the genetic structure of the population of these NT conjunctival strains, we analyzed 75 pneumococci (40 NT and 35 typeable) isolated from conjunctivas and 30 (15 NT and 15 typeable) isolated from other sources. The NT and typeable conjunctival strains grouped in separate clusters, whereas NT and typeable pneumococci isolated from other sources were similarly distributed. NT conjunctival strains belonged to two well-differentiated clonal lineages. The first, represented by three newly described sequence types, featured fully antibiotic susceptible strains and appeared to be characteristic of conjunctival tissue; the second, represented by the previously described ST344, had a pattern of multiresistance to penicillin, tetracycline, and erythromycin and shared a genetic background with some NT strains isolated from other sources.

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Mesh：

Year:  2005        PMID： 15814987      PMCID： PMC1081313          DOI： 10.1128/JCM.43.4.1694-1698.2005

Source DB:  PubMed          Journal:  J Clin Microbiol        ISSN： 0095-1137            Impact factor:   5.948


  21 in total

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Authors:  R E Perkins; R B Kundsin; M V Pratt; I Abrahamsen; H M Leibowitz
Journal:  J Clin Microbiol       Date:  1975-02       Impact factor: 5.948

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Authors:  Tarja Kaijalainen; S Rintamäki; E Herva; M Leinonen
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Authors:  C V Broome; R R Facklam
Journal:  Rev Infect Dis       Date:  1981 Mar-Apr

4.  Genetic relatedness among nontypeable pneumococci implicated in sporadic cases of conjunctivitis.

Authors:  J H Barker; D M Musher; R Silberman; H M Phan; D A Watson
Journal:  J Clin Microbiol       Date:  1999-12       Impact factor: 5.948

5.  Changes in occurrence of capsular serotypes of Streptococcus pneumoniae at Boston City Hospital during selected years between 1935 and 1974.

Authors:  M Finland; M W Barnes
Journal:  J Clin Microbiol       Date:  1977-02       Impact factor: 5.948

6.  An outbreak of conjunctivitis due to atypical Streptococcus pneumoniae.

Authors:  Michael Martin; John H Turco; Michael E Zegans; Richard R Facklam; Samir Sodha; John A Elliott; John H Pryor; Bernard Beall; Dean D Erdman; Yolanda Y Baumgartner; Paul A Sanchez; Joseph D Schwartzman; José Montero; Anne Schuchat; Cynthia G Whitney
Journal:  N Engl J Med       Date:  2003-03-20       Impact factor: 91.245

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Authors:  F Gigliotti; W T Williams; F G Hayden; J O Hendley; J Benjamin; M Dickens; C Gleason; V A Perriello; J Wood
Journal:  J Pediatr       Date:  1981-04       Impact factor: 4.406

8.  A multilocus sequence typing scheme for Streptococcus pneumoniae: identification of clones associated with serious invasive disease.

Authors:  Mark C Enright; Brian G Spratt
Journal:  Microbiology (Reading)       Date:  1998-11       Impact factor: 2.777

9.  Characterization of nontypable Streptococcus pneumoniae-like organisms isolated from outbreaks of conjunctivitis.

Authors:  M Shayegani; L M Parsons; W E Gibbons; D Campbell
Journal:  J Clin Microbiol       Date:  1982-07       Impact factor: 5.948

10.  Confirmation of nontypeable Streptococcus pneumoniae-like organisms isolated from outbreaks of epidemic conjunctivitis as Streptococcus pneumoniae.

Authors:  Maria Gloria S Carvalho; Arnold G Steigerwalt; Terry Thompson; Delois Jackson; Richard R Facklam
Journal:  J Clin Microbiol       Date:  2003-09       Impact factor: 5.948
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3.  A successful, diverse disease-associated lineage of nontypeable pneumococci that has lost the capsular biosynthesis locus.

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Authors:  Christian F P Scholz; Knud Poulsen; Mogens Kilian
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5.  Biofilm formation by Streptococcus pneumoniae: role of choline, extracellular DNA, and capsular polysaccharide in microbial accretion.

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6.  Nontypeable Streptococcus pneumoniae as an otopathogen.

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Journal:  Diagn Microbiol Infect Dis       Date:  2011-02       Impact factor: 2.803

7.  Characteristic signatures of the lytA gene provide a basis for rapid and reliable diagnosis of Streptococcus pneumoniae infections.

Authors:  Daniel Llull; Rubens López; Ernesto García
Journal:  J Clin Microbiol       Date:  2006-04       Impact factor: 5.948

8.  Nonencapsulated Streptococcus pneumoniae causes otitis media during single-species infection and during polymicrobial infection with nontypeable Haemophilus influenzae.

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9.  Serotype 5 pneumococci causing invasive pneumococcal disease outbreaks in Barcelona, Spain (1997 to 2011).

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10.  Disease isolates of Streptococcus pseudopneumoniae and non-typeable S. pneumoniae presumptively identified as atypical S. pneumoniae in Spain.

Authors:  Dora Rolo; Alexandra S Simões; Arnau Domenech; Asunción Fenoll; Josefina Liñares; Hermínia de Lencastre; Carmen Ardanuy; Raquel Sá-Leão
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