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ANIMAL SPOROTRICHOSIS: A GLOBAL OVERVIEW
Affilliation
Fundação Oswaldo Cruz. Instituto Nacional de Infectologia Evandro Chagas. Laboratório de Pesquisa Clínica Evandro Chagas. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Nacional de Infectologia Evandro Chagas. Laboratório de Pesquisa Clínica Evandro Chagas. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Nacional de Infectologia Evandro Chagas. Laboratório de Pesquisa Clínica Evandro Chagas. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Nacional de Infectologia Evandro Chagas. Laboratório de Pesquisa Clínica Evandro Chagas. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Nacional de Infectologia Evandro Chagas. Laboratório de Pesquisa Clínica Evandro Chagas. Rio de Janeiro, RJ, Brasil.
Abstract
Sporotrichosis is a worldwide mycosis caused by thermodimorphic pathogenic members of the genus Sporothrix. The disease has already been reported in humans and several animal species like cats, dogs, armadillos, horses, mules, donkeys, chimpanzees, cattle, goats, pigs, mice, rats, hamsters, dolphins, foxes and camels. However, it has been reported most frequently in cats, and the dog is the second most commonly affected. The first reported cases of natural animal infection were described in rats in 1907. Animal cases of sporotrichosis were rare until the 1990s, and most of the reports were from the USA and Brazil. In the 21st century, the reported cases of animal sporotrichosis are from Argentina, Brazil, Germany, India, Italy, Japan, Malaysia, Nigeria and USA. The only reported epizootic of sporotrichosis affecting dogs and cats has been occurring in Brazil since 1998. Clinically, feline sporotrichosis has a broad spectrum of presentation, and the most frequent forms are multiple skin lesions with mucosal involvement, especially the nasal mucosa. Cutaneous lesions in cats carry a high fungal burden, making the cat an important source of infection of Sporothrix. In dogs, the most common clinical forms are single skin lesions on the nose, with frequent nasal mucosal involvement. In view of the scarcity of viable fungal organisms in their cutaneous lesions and the absence of fungus in the oral cavity, dogs are probably not directly involved in the zoonotic transmission of Sporothrix. Lately, animal sporotrichosis has gained attention due to increasing reports of zoonotic transmission. Furthermore, the significant increase in scientific production on sporotrichosis in the recent years has provided a broader knowledge of the different aspects of this disease in animals.
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