What question did this study set out to answer?

To report the occurrence of Mycobacterium ulcerans ecovar Liflandii in a Cuban crocodile and assess its implications.

April 18, 2026Open Access

Mycobacterium ulcerans ecovar Liflandii infection in new host in a Cuban crocodile (Crocodylus rhombifer)

ABAlexandra BiácsiUniversity of Nyíregyháza ÁBÁ. BacsadiNational Food Chain Safety Office EPEndre Ákos PappUniversity of Nyíregyháza

Key Points

To report the occurrence of Mycobacterium ulcerans ecovar Liflandii in a Cuban crocodile and assess its implications.
Case report of a Cuban crocodile that died suddenly in a zoo
Identification of the pathogen through laboratory analysis
Confirmed infection by Mycobacterium ulcerans ecovar Liflandii in the crocodile
First documented instance of this pathogen in a crocodilian
Highlighting the potential for zoonotic transmission from amphibians to reptiles

Abstract

Mycobacterium ulcerans ecovar Liflandii has recently been described as the causative agent of fatal disease in different frog species. This is the first report of this pathogen in a Cuban crocodile (Crocodylus rhombifer), which died suddenly in a Hungarian zoo. The authors' findings suggest that M. ulcerans ecovar Liflandii does not exclusively infects anurans and highlights the zoonotic risk posed by this emerging pathogen.

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