Prevalence of pilus-encoding islets among acute otitis media Streptococcus pneumoniae isolates from Israel

We evaluated the distribution of the two known Streptococcus pneumoniae pilus encoding islets (PI-1 and PI-2) among a panel of 113 acute otitis media clinical isolates from Israel. PI-1 was present in 30.1% (n = 34) of the isolates tested, and PI-2 was present in 7% (n = 8). In addition, we found th...

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Veröffentlicht in:Clinical microbiology and infection 2010-09, Vol.16 (9), p.1501-1504
Hauptverfasser: Moschioni, M., De Angelis, G., Melchiorre, S., Masignani, V., Leibovitz, E., Barocchi, M.A., Dagan, R.
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container_end_page 1504
container_issue 9
container_start_page 1501
container_title Clinical microbiology and infection
container_volume 16
creator Moschioni, M.
De Angelis, G.
Melchiorre, S.
Masignani, V.
Leibovitz, E.
Barocchi, M.A.
Dagan, R.
description We evaluated the distribution of the two known Streptococcus pneumoniae pilus encoding islets (PI-1 and PI-2) among a panel of 113 acute otitis media clinical isolates from Israel. PI-1 was present in 30.1% (n = 34) of the isolates tested, and PI-2 was present in 7% (n = 8). In addition, we found that: (i) the PI positive isolates, 50% of which belong to the international clones Spain9V-3 (ST156) and Taiwan19F-14 (ST236), correlate with the genotype (as determined by multilocus sequence typing) but not with the serotype; (ii) PI-2 was not present in the absence of Pl-1; and (iii) the frequency of PI-1 was higher among antibiotic-resistant isolates.
doi_str_mv 10.1111/j.1469-0691.2010.03105.x
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PI-1 was present in 30.1% (n = 34) of the isolates tested, and PI-2 was present in 7% (n = 8). In addition, we found that: (i) the PI positive isolates, 50% of which belong to the international clones Spain9V-3 (ST156) and Taiwan19F-14 (ST236), correlate with the genotype (as determined by multilocus sequence typing) but not with the serotype; (ii) PI-2 was not present in the absence of Pl-1; and (iii) the frequency of PI-1 was higher among antibiotic-resistant isolates.</description><identifier>ISSN: 1198-743X</identifier><identifier>EISSN: 1469-0691</identifier><identifier>DOI: 10.1111/j.1469-0691.2010.03105.x</identifier><language>eng</language><publisher>Oxford, UK: Elsevier Ltd</publisher><subject>Acute otitis media ; antibiotic resistance ; Bacterial diseases ; Biological and medical sciences ; Clinical isolates ; Ear diseases ; Ear, auditive nerve, cochleovestibular tract, facial nerve: diseases, semeiology ; Ent and stomatologic bacterial diseases ; genotype ; Genotypes ; Human bacterial diseases ; Infectious diseases ; Islets of Langerhans ; Medical sciences ; multilocus sequence typing ; Non tumoral diseases ; Otitis media ; Otorhinolaryngology. 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source Wiley Online Library Journals Frontfile Complete; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection
subjects Acute otitis media
antibiotic resistance
Bacterial diseases
Biological and medical sciences
Clinical isolates
Ear diseases
Ear, auditive nerve, cochleovestibular tract, facial nerve: diseases, semeiology
Ent and stomatologic bacterial diseases
genotype
Genotypes
Human bacterial diseases
Infectious diseases
Islets of Langerhans
Medical sciences
multilocus sequence typing
Non tumoral diseases
Otitis media
Otorhinolaryngology. Stomatology
pilus-encoding islet
Pneumonia
Serotypes
Staphylococcal infections, streptococcal infections, pneumococcal infections
Streptococcus infections
Streptococcus pneumoniae
title Prevalence of pilus-encoding islets among acute otitis media Streptococcus pneumoniae isolates from Israel
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