Evidence map›Paper›PMID 24131683›Full record

ArticleJournal of clinical microbiology2014

Prevalence and genotype distribution of Pneumocystis jirovecii in Cuban infants and toddlers with whooping cough.

Ernesto X Monroy-Vaca, Yaxsier de Armas, María T Illnait-Zaragozí, Gilda Toraño, Raúl Diaz, Dania Vega, Ileana Alvarez-Lam, Enrique J Calderón, Christen R Stensvold

Open access · bronzeAbstract read
In one paragraph

Article in Journal of clinical microbiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.6field-weighted citation impact, top 10% of its field
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

13 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
  2. Review
  3. Concurrent Infection with SARS-CoV-2 andJournal of fungi (Basel, Switzerland) · 2022
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  4. Transmission and Colonization ofJournal of fungi (Basel, Switzerland) · 2021
    Review
  5. Update on Dihydropteroate Synthase (DHPS) Mutations inJournal of fungi (Basel, Switzerland) · 2021
    Review
  6. Article
  7. Molecular diagnosis and genotyping ofCurrent medical mycology · 2019
    Article
  8. Review
  9. Article
  10. [Research progress on genes mutations related to sulfa drug resistance inZhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences · 2017
    Review
  11. Article
  12. Article
  13. 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

9 authors at 4 institutions in 3 countries.

Ernesto X Monroy-VacaDepartment of Bacteriology and Mycology, Institute of Tropical Medicine Pedro Kourí, Havana, Cuba.
Yaxsier de Armas
María T Illnait-Zaragozí
Gilda Toraño
Raúl Diaz
Dania Vega
Ileana Alvarez-Lam
Enrique J Calderón
Christen R Stensvold
Instituto de Medicina Tropical “Pedro Kourí” · CUHospital Oncológico Docente "Conrado Benítez García" · CUInstituto de Biomedicina de Sevilla · ESStatens Serum Institut · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study describes the prevalence and genotype distribution of Pneumocystis jirovecii obtained from nasopharyngeal (NP) swabs from immunocompetent Cuban infants and toddlers with whooping cough (WC). A total of 163 NP swabs from 163 young Cuban children with WC who were admitted to the respiratory care units at two pediatric centers were studied. The prevalence of the organism was determined by a quantitative PCR (qPCR) assay targeting the P. jirovecii mitochondrial large subunit (mtLSU) rRNA gene. Genotypes were identified by direct sequencing of mtLSU ribosomal DNA (rDNA) and restriction fragment length polymorphism (RFLP) analysis of the dihydropteroate synthase (DHPS) gene amplicons. qPCR detected P. jirovecii DNA in 48/163 (29.4%) samples. mtLSU rDNA sequence analysis revealed the presence of three different genotypes in the population. Genotype 2 was most common (48%), followed in prevalence by genotypes 1 (23%) and 3 (19%); mixed-genotype infections were seen in 10% of the cases. RFLP analysis of DHPS PCR products revealed four genotypes, 18% of which were associated with resistance to sulfa drugs. Only contact with coughers (prevalence ratio [PR], 3.51 [95% confidence interval {CI}, 1.79 to 6.87]; P = 0.000) and exposure to tobacco smoke (PR, 1.82 [95% CI, 1.14 to 2.92]; P = 0.009) were statistically associated with being colonized by P. jirovecii. The prevalence of P. jirovecii in infants and toddlers with WC and the genotyping results provide evidence that this population represents a potential reservoir and transmission source of P. jirovecii.

Indexed as

ChildChild, PreschoolCubaDNA, FungalFemaleGenotypeHumansInfantInfant, NewbornMaleMolecular Sequence DataNasopharynxPneumocystis cariniiPneumocystis InfectionsPolymorphism, Restriction Fragment LengthPrevalenceDNA, Fungal

Identifiers

PMID24131683
PMCPMC3911444
OpenAlexW2164913180

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.