ArticleBrazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]2020
High frequency of Chlamydia pneumoniae and risk factors in children with acute respiratory infection.
Article in Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology], 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.
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Who cites it
8 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Prevalence of atypical pathogens in patients with severe pneumonia: a systematic review and meta-analysis.BMJ open · 2023Pooled it
- A single tertiary hospital-based retrospective observational study on epidemiological features and clinical correlates of severe pediatricTranslational pediatrics · 2026Article
- Genotypic and phenotypic characterization of Pseudomonas aeruginosa PAV112: a virulent clinical strain causing severe pneumonia and lethal sepsis in a murine infection model.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2026Article
- Risk factors for severeFrontiers in pediatrics · 2026Article
- Characteristics ofFrontiers in pediatrics · 2026Article
- Epidemiological and clinical analysis of 291 children diagnosed withFrontiers in pediatrics · 2025Article
- Chlamydophila pneumoniae-associated community-acquired pneumonia in paediatric patients of a tertiary care hospital in Mexico: molecular diagnostic and clinical insights.Scientific reports · 2023Article
- Diagnostic Value of the Triple Combination of Serum Heparin-Binding Protein, Procalcitonin, and C-Reactive Protein in Children with Acute Bacterial Upper Respiratory Tract Infection.Journal of healthcare engineering · 2022Article
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Authors and funding
15 authors.
Funding
Abstract
This study was performed as a contribution for a better understanding of Chlamydia pneumoniae frequency in children with respiratory infections. A total of 416 children were recruited from two clinical centers in Sao Luis, Brazil. Of these patients, 165 children had upper respiratory tract infections (URTI), 150 had community-acquired pneumonia (CAP), and 101 were asymptomatic volunteer children. Clinical and epidemiological data from the participants were recorded. Nasopharyngeal swab samples were collected to extract DNA. C. pneumoniae DNA positivity and copy numbers were obtained by an absolute quantitative real-time PCR method.
resultsPositivity for C. pneumoniae DNA was higher in samples from URTI children (38.2%) and from CAP children (18.0%) than in those from the control group (7.9%; p < 0.001). Moreover, C. pneumoniae DNA was denser in children with URTI than in asymptomatic children. Considering the cutoff, the highest value of C. pneumoniae DNA found in asymptomatic children of the 3.98 log10 copies/mL, 8.5% (14/165) of the children with URTI, and 3.3% (5/150) with CAP presented high copy numbers of C. pneumoniae DNA.
conclusionTaken together, these results revealed a high frequency of C. pneumoniae in both children with URTI and CAP.
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