Jonas Haller, Anja Berger, Alexandra Dangel, Katja Bengs, Imke Friedrichs, Christian Kleine, Dorothee Schmidt, Maria Goetzens, Udo Goetsch, Michael Hogardt, Andreas Sing
{"title":"Diphtheria Outbreak among Persons Experiencing Homelessness, 2023, Linked to 2022 Diphtheria Outbreak, Frankfurt am Main, Germany","authors":"Jonas Haller, Anja Berger, Alexandra Dangel, Katja Bengs, Imke Friedrichs, Christian Kleine, Dorothee Schmidt, Maria Goetzens, Udo Goetsch, Michael Hogardt, Andreas Sing","doi":"10.3201/eid3103.241217","DOIUrl":null,"url":null,"abstract":"<p>After 3 cases of <em>Corynebacterium diphtheriae</em> 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 <em>C. diphtheriae</em>. 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.</p>","PeriodicalId":11595,"journal":{"name":"Emerging Infectious Diseases","volume":"2 1","pages":""},"PeriodicalIF":7.2000,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Emerging Infectious Diseases","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.3201/eid3103.241217","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"IMMUNOLOGY","Score":null,"Total":0}
Diphtheria Outbreak among Persons Experiencing Homelessness, 2023, Linked to 2022 Diphtheria Outbreak, Frankfurt am Main, Germany
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.
期刊介绍:
Emerging Infectious Diseases is a monthly open access journal published by the Centers for Disease Control and Prevention. The primary goal of this peer-reviewed journal is to advance the global recognition of both new and reemerging infectious diseases, while also enhancing our understanding of the underlying factors that contribute to disease emergence, prevention, and elimination.
Targeted towards professionals in the field of infectious diseases and related sciences, the journal encourages diverse contributions from experts in academic research, industry, clinical practice, public health, as well as specialists in economics, social sciences, and other relevant disciplines. By fostering a collaborative approach, Emerging Infectious Diseases aims to facilitate interdisciplinary dialogue and address the multifaceted challenges posed by infectious diseases.