Evidence map›Paper›PMID 40023808›Full record

ArticleEmerging infectious diseases2025

Diphtheria Outbreak among Persons Experiencing Homelessness, 2023, Linked to 2022 Diphtheria Outbreak, Frankfurt am Main, Germany.

Jonas Haller, Anja Berger, Alexandra Dangel, Katja Bengs, Imke Friedrichs, Christian Kleine, Dorothee Schmidt, Maria Goetzens, Udo Goetsch, Michael Hogardt and 1 more

Abstract read
In one paragraph

Article in Emerging infectious diseases, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 citing papers in PubMed.

  1. Article
  2. Article
  3. [Cutaneous diphtheria among the homeless].Dermatologie (Heidelberg, Germany) · 2026
    Article
  4. Article
  5. Two diphtheria sub-clusters with autochthonous cases in Germany and Poland within aEuro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2025
    Article
  6. Autochthonous outbreak of respiratory diphtheria caused byEuro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2025
    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

11 authors.

Jonas Haller
Anja Berger
Alexandra Dangel
Katja Bengs
Imke Friedrichs
Christian Kleine
Dorothee Schmidt
Maria Goetzens
Udo Goetsch
Michael Hogardt
Andreas Sing

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

After 3 cases of Corynebacterium diphtheriae infection associated with intravenous drug use among persons experiencing homelessness (PEH) were reported to the Health Protection Authority in Frankfurt am Main, Germany, in 2023, we examined pathogen spread among PEH. Furthermore, we investigated a possible link with the 2022 outbreak of diphtheria in Europe. From swab samples collected during August-November 2023 from 36 PEH and cutaneous lesions, we detected 3 additional cases of cutaneous toxigenic C. diphtheriae. Sequence type 574 was identified in 5 case-isolates and is genetically associated with 1 of the predominant clusters in identified in the 2022 outbreak. Our findings demonstrate the need for increased detection and monitoring of cutaneous diphtheria and boosting immunity against diphtheria in groups with increased risk for infection. Genomic analyses are valuable for identifying genetic relationships between outbreaks, even when epidemiologic data are scarce.

Indexed as

Corynebacterium diphtheriaeDiphtheriaDisease OutbreaksIll-Housed PersonsAdultFemaleGermanyHumansMaleMiddle AgedbacteriaCorynebacterium diphtheriaediphtheriaFrankfurt am MainGermanymigrantsmolecular epidemiologymultilocus sequence typingoutbreakpersons experiencing homelessnesspublic health

Identifiers

PMID40023808
PMCPMC11878310

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.