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Snake fungal disease (SFD), also known as ophidiomycosis, is a fungal disease that has notably affected wild and captive snakes. The fungal pathogen Ophidiomyces ophiodiicola causes this disease, which typically presents as abnormalities of the skin such as discoloration, ulcerative lesions, and swelling. These localized skin conditions can lead to more chronic conditions, which may cause morphological and sensory impairment, as well as alterations in behavior and physiology, which commonly increase mortality. The level of concern regarding snake fungal disease is significant as it poses a threat to wildlife conservation, given its wide geographic range and the possibility that environmental changes could alter host susceptibility. There is no cure for SFD. While captive snakes may respond to antifungal treatments and environmental management, treating wild populations remains highly challenging.
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Inclusion body disease (IBD) is a progressive viral disease that affects snakes of various species, primarily boas and pythons. The causative agent is reptarenaviruses, and IBD is characterized by the presence of cytoplasmic inclusion bodies found in blood smears and tissue samples. Symptoms include neurological signs, regurgitation, lymphoproliferative disorder, or increased susceptibility to secondary infections. There is no known treatment for IBD. It is often described as fatal, which suggests euthanization is the best solution once the disease has progressed. Until recently, IBD had only been observed in captive snakes, but its presence in wild snakes posed a threat to wildlife conservation.
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Ferlavirus infection is a serious, potentially fatal disease that primarily affects snakes. The virus, which belongs to the genus Ferlavirus, is the causative agent. While it does not cause specific infection-related symptoms, it is often recognized for the damage it causes to the respiratory and neurological systems. Significant knowledge gaps remain regarding the treatment and transmission of this disease. It occurs worldwide and can cross-infect multiple reptile species, posing challenges for both conservation efforts and disease management.
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