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Dermatophytosis caused by Trichophyton benhamiae in a sea lion. First report
Ronar López1,2, Víctor Silva3, Viviana Bown1
1Laboratorio de Microbiología Clínica y Microbioma, Escuela de Medicina Veterinaria, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Av. Lo Pinto s/n. Colina, Santiago, 8370134, Chile.
Abstract:
Fungal infections in marine animals, particularly pinnipeds, have seen a notable increase, often linked to compromised immune systems in captive environments. Trichophyton species, while common in terrestrial mammals, have sporadically caused dermatophytosis in pinnipeds. A South American sea lion (Otaria byronia) presented with Trichophyton benhamiae infection, marking the first such case in this species. Effective treatment combined oral terbinafine with topical ozonized oil, supported by silymarin for liver protection. Accurate fungal identification and sensitivity testing were key to the successful management and recovery of the patient.
Insights
A South American sea lion experienced a rare Trichophyton benhamiae fungal infection. Treatment involved oral terbinafine, ozonized oil, and silymarin, leading to successful recovery.
Area of Science:
- Veterinary Mycology
- Marine Mammal Health
Background:
- Increasing fungal infections in marine animals, especially pinnipeds, are linked to immunosuppression in captivity.
- Dermatophytosis in pinnipeds is uncommon, with *Trichophyton* species rarely implicated.
Observation:
- A South American sea lion (*Otaria byronia*) presented with a dermatophyte infection.
- This case represents the first documented instance of *Trichophyton benhamiae* infection in this species.
Findings:
- Accurate identification of *Trichophyton benhamiae* and antifungal sensitivity testing were crucial.
- A combination therapy of oral terbinafine and topical ozonized oil proved effective.
- Silymarin was administered as a hepatoprotective agent during treatment.
Implications:
- Highlights the potential for *Trichophyton benhamiae* to cause disease in naive pinniped populations.
- Demonstrates the efficacy of a multi-modal treatment approach for dermatophytosis in marine mammals.
- Emphasizes the importance of targeted antifungal therapy and supportive care in managing fungal infections in captive pinnipeds.
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