Evidence map›Paper›PMID 40884594›Full record

ArticleEuropean journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology2025

Sharp increase in Chlamydia pneumoniae infections in 2024 in Germany.

Sébastien Boutin, Andi Krumbholz, Tobias Siegfried Kramer, Michael Boehm, Norbert Schmeisser, Rolf Kaiser, Jan Rupp

Abstract read
In one paragraph

Article in European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Spread ofEmerging microbes & infections · 2026
    Article
  2. Upsurge of Chlamydia pneumoniae respiratory tract infections in 2024/2025 in Southern Germany.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2026
    Article
  3. Clinical features and chest CT findings ofFrontiers in medicine · 2026
    Article
  4. 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

7 authors.

Sébastien BoutinInstitute of Medical Microbiology, University of Lübeck and University Hospital Schleswig-Holstein, Campus Lübeck, Lübeck, Germany.
Andi KrumbholzLabor Dr. Krause und Kollegen Medizinisches Versorgungszentrum GmbH, Kiel, Germany.
Tobias Siegfried KramerLADR der Laborverbund Dr. Kramer & Kollegen, Geesthacht, Germany.
Michael BoehmInstitute of Virology, University of Cologne, Cologne, Germany.
Norbert SchmeisserMedeora, Cologne, Germany.
Rolf KaiserInstitute of Virology, University of Cologne, Cologne, Germany.
Jan RuppInstitute of Medical Microbiology, University of Lübeck and University Hospital Schleswig-Holstein, Campus Lübeck, Lübeck, Germany. Jan.Rupp@uksh.de.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chlamydia pneumoniae (C. pneumoniae) is a recognized cause of respiratory infections in children and adolescents, while it is often considered a negligible pathogen in adults outside of outbreaks. We performed a retrospective analysis from a nationwide surveillance network in Germany that collected data from 2018 to 2024. A multivariate analysis (binomial model) was performed to assess the influence of year, hospitalization status, gender and age on C. pneumoniae detection rate. Our analysis showed an increasing C. pneumoniae detection rate in 2024 compared to 2019, especially in children below 15 years and adults aged 30-50 years, mostly in patients who were treated as outpatients.

Indexed as

Chlamydophila InfectionsChlamydophila pneumoniaeAdolescentAdultAgedChildChild, PreschoolFemaleGermanyHospitalizationHumansInfantMaleMiddle AgedRetrospective StudiesYoung AdultChlamydia pneumoniaeIntracellular bacteriaRespiratory infectionSurveillance

Identifiers

PMID40884594
PMCPMC12619724

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.