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Cited by 543

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Sequential Multiplex PCR Approach for Determining Capsular Serotypes of Streptococcus pneumoniae Isolates

Open access
Pai, Rekha, Gertz, Robert E., Beall, Bernard·2006·Journal of Clinical Microbiology

Abstract

Accurate serotyping is essential to monitor the changes in the seroepidemiology of Streptococcus pneumoniae . We devised a simple and schematic sequence-based system of seven multiplex PCRs, in a sequence order based upon Active Bacterial Core surveillance (ABCs) serotype distribution during 2002 to 2003, to reliably deduce specific pneumococcal serotypes. A total of 421 isolates from ABCs were randomly chosen to evaluate this system. Two hundred twenty-nine of the isolates (54.3%) were specifically assigned 1 of 17 serotypes by the multiplex PCR system, with the results in complete concordance with conventional serotyping. One hundred seventy-two additional isolates (40.9%) were assigned to 11 specific sets of 2 to 4 serotypes that with one exception (serotypes 6A and 6B) consisted of the single frequently occurring targeted serotype and 1 to 3 additional rare serotypes primarily within the same serogroup as the targeted serotype. Only 20 isolates (4.8%) could not be assigned specific serotypes or serotype sets, since they were either of rare serotypes not included in the assay design or were nonserotypeable. Overall, we found this system to be highly reliable, with the potential to greatly reduce our reliance upon conventional serotyping. Especially important is the capability of this system to give serotype-determining potential to any facility that lacks the expensive typing sera and expertise needed for conventional serotyping yet has the modest equipment necessary for DNA amplification and electrophoresis.

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Crossref · 10.1128/jcm.44.1.124-131.2006

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Metadata

Authors
Pai, R., Gertz, R. E., & Beall, B.
Venue
Journal of Clinical Microbiology
Published
2006-01
Volume
44
Issue
1
Pages
124-131
ISSN
  • 0095-1137 (ISSN-L)
  • 1098-660X
OpenAlex
W2117383615
Cited by
543
References
24
FWCI
7.75
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Sequential Multiplex PCR Approach for Determining Capsular Serotypes of Streptococcus pneumoniae Isolates. https://app.cochat.ai/papers/10.1128/jcm.44.1.124-131.2006
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Pai, R., Gertz, R. E., & Beall, B. (2006). Sequential Multiplex PCR Approach for Determining Capsular Serotypes of Streptococcus pneumoniae Isolates. Journal of Clinical Microbiology. https://doi.org/10.1128/jcm.44.1.124-131.2006

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.