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March 14, 2026Frontiers in Public HealthOpen Access

Epidemiology of Chlamydia pneumoniae infection in children with acute respiratory tract infections, Chengdu, 2022–2023

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Authors

YDYifei DuanYWYu WuYGYu Gou

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Overview

Epidemiology study reveals changing trends of Chlamydia pneumoniae infection in children, indicating new prevention strategies.

Key Points

  • This research aims to investigate the prevalence of Chlamydia pneumoniae infection among children with acute respiratory tract infections over two years.
  • Analyzed cases of children with ARTIs at a university hospital from January 2022 to December 2023.
  • Detected IgM antibodies against C. pneumoniae using a chemiluminescence immunoassay.
  • Compared demographic and temporal differences in IgM positivity across the two years.
  • 20,689 children were included in the analysis.
  • In 2022, the IgM seropositivity rate was 4.3%; in 2023, it increased to 5.9%.
  • The seropositivity rate was significantly higher in 2023 across most age groups compared to 2022.

Cite This Study

Duan et al. (2026) studied this question.

synapsesocial.com/papers/69b4fbb1b39f7826a300c07ahttps://doi.org/10.3389/fpubh.2026.1729558
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Positive rates of Mycoplasma pneumoniae antibodies in children before, during and after COVID-19 outbreak: an observational study in Chengdu, China from 2017 to 20242025 · 8 citations
  2. 2Surge in <i>Chlamydia pneumoniae</i> infections in China: insights from 2022 to 20242025
  3. 3Epidemiologic characteristics of immunoglobulin M antibodies in lower respiratory tract infection pathogens of children: association with severe pneumonia in Chengdu city from 2019 to 20232025
  4. 4Changes in Epidemiological Characteristics in Children with Mycoplasma pneumoniae Seropositivity in Southwest China from 2022 to 20232026
  5. 5A retrospective analysis of 266 cases: clinical features of Chlamydia pneumoniae pneumonia in children2026