Evidence map›Paper›PMID 19605573›Full record

ArticleJournal of clinical microbiology2009

Direct sequencing of Legionella pneumophila from respiratory samples for sequence-based typing analysis.

Mireia Coscollá, Fernando González-Candelas

Abstract readComparative StudyEvaluation Study
In one paragraph

Article in Journal of clinical microbiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Application of Legionella pneumophila-specific quantitative real-time PCR combined with direct amplification and sequence-based typing in the diagnosis and epidemiological investigation of Legionnaires' disease.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2012
    Article
  8. Article
  9. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

Mireia CoscolláInstitut Cavanilles de Biodiversitat i Biologia Evolutiva, University of Valencia, Apartado Oficial 22085, Valencia 46071, Spain. mireia.coscolla@uv.es
Fernando González-Candelas

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We have developed a procedure to test the efficiency and reliability of sequencing of Legionella pneumophila genes directly from respiratory samples and have compared the results with those derived from cultured isolates. We tried to obtain the nucleotide sequences of six protein-coding loci included in the sequence-based typing scheme for Legionella pneumophila and three intergenic regions from 132 samples corresponding to 106 patients positive for urine antigen. A seminested PCR approach was used to amplify and sequence these nine loci directly from respiratory samples. Nucleotide sequences were directly obtained for 23 Legionella isolates and also for 66 respiratory secretions from a total of 69 patients. The efficiency of sequencing from respiratory secretions was higher than that of sequencing after the isolation of the Legionella isolates. Moreover, the perfect match between the sequences obtained by both approaches when respiratory samples and cultured isolates from the same patient were available corroborates the suitability of the direct sequencing approach for the identification of Legionella species and molecular epidemiology studies with Legionella species.

Indexed as

Bacterial ProteinsBacterial Typing TechniquesBodily SecretionsDNA, BacterialDNA, IntergenicGenotypeHumansLegionella pneumophilaLegionnaires' DiseasePolymerase Chain ReactionRespiratory SystemSensitivity and SpecificitySequence Analysis, DNABacterial ProteinsDNA, BacterialDNA, Intergenic

Identifiers

PMID19605573
PMCPMC2738094

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.