Severe Respiratory Diphtheria-Like Illness Caused by Toxigenic Corynebacterium ulcerans

Emerging infectious diseases 2026 Open access

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Authors: Rita Helleren, Hans Kristian Fløystad, Odd Alexander Tellefsen, Miroslav Boskovic, Terje Skraastad, Anne Torunn Mengshoel, Kristian Alfsnes, Vegard Skogen
DOI: 10.3201/eid3202.250908
Cited by: 0
References: 9

Abstract

We report a possible zoonotic case of severe diphtheria-like respiratory illness in Norway caused by a previously unreported toxigenic Corynebacterium ulcerans sequence type. This case highlights C. ulcerans as an emerging pathogen that can cause life-threatening disease. Clinicians should be aware of C. ulcerans infection, even in regions where diphtheria is rare.

Fields of Study & Subjects

Diphtheria Corynebacterium and Tetanus Infectious Disease Case Reports and Treatments Microbial infections and disease research

Publication details

Journal / source
Emerging infectious diseases
Volume
32
Issue
2
Pages
285–287
Publication date
1 February 2026
Language
EN