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1.
Braz J Microbiol ; 52(1): 145-153, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-32812211

RESUMEN

Sporotrichosis zoonotic transmission by cats has obtained hyperendemic magnitude in Rio de Janeiro, Brazil. Atypical cases, relapses, and reinfections as well as reduced diagnostic sensitivity of conventional methods have been reported. Previously, the anti-SsCBF enzyme-linked immunosorbent assay (ELISA) test was shown to be useful as a diagnostic tool for human sporotrichosis. Effective diagnosis and treatment are critical to interrupt the chain of transmission of this major pathogen in Brazilian Public Health. To evaluate its applicability for feline sporotrichosis diagnosis and/or therapeutic follow-up, 15 domestic cats from Rio de Janeiro were clinically and laboratory monitored by cytopathology, culture, Sporothrix genotyping, and anti-SsCBF IgG levels. Subsequently, animals were divided into satisfactory and non-satisfactory therapeutic responders. Averages of antibody serum levels obtained for diagnosis (first consultation) compared with the levels found after follow-up (last consultation) were significantly different in both groups (p = 0.0002 and p = 0.038, respectively). We conclude that the SsCBF ELISA test can predict feline sporotrichosis therapeutic responses even for animals with distinct clinical evolutions.


Asunto(s)
Enfermedades de los Gatos/tratamiento farmacológico , Monitoreo de Drogas/métodos , Ensayo de Inmunoadsorción Enzimática/métodos , Sporothrix/efectos de los fármacos , Esporotricosis/veterinaria , Animales , Anticuerpos Antifúngicos/sangre , Brasil/epidemiología , Enfermedades de los Gatos/sangre , Enfermedades de los Gatos/epidemiología , Enfermedades de los Gatos/microbiología , Gatos , Sporothrix/clasificación , Sporothrix/genética , Sporothrix/fisiología , Esporotricosis/tratamiento farmacológico , Esporotricosis/epidemiología , Esporotricosis/microbiología
2.
BMC Vet Res ; 14(1): 19, 2018 Jan 18.
Artículo en Inglés | MEDLINE | ID: mdl-29347940

RESUMEN

BACKGROUND: Sporotrichosis is a neglected zoonosis caused by pathogenic fungi belonging to the Sporothrix schenckii complex. In Rio de Janeiro state, this disease reached an epidemic status with over 4700 domestic felines and around 4000 humans affected since the mid-90s. The present study evaluated clinical and epidemiological aspects and also the frequency of colonization and infection by these fungi in healthy cats and among those with suspicious cutaneous lesions, inhabiting four Rio de Janeiro state distinct areas. RESULTS: Three hundred and seventy-one cats were included in two groups: 175 healthy cats [CRG] and 196 cats showing lesions suggesting sporotrichosis [SSG]. Mycological diagnosis allowed SSG animals to be divided in positive [104 cats; +SG] and negative [92 cats; -SG] groups. Nails, oral mucosa and lesions swabs were submitted to culture and potential colonies were subculture for micromorphologycal analysis, dimorphism and molecular tests. In the CRG, only one cat was colonized in the oral cavity [0.57%]; in the -SG group, four animals showed colonization of the nail and/or oral cavity [4.3%]; while the highest frequency of colonization [39.4%] was observed in the +SG. All molecularly typed isolates were identified as S. brasiliensis. CONCLUSION: The results obtained here indicate that healthy cats have a minor role in sporotrichosis transmission within the state of Rio de Janeiro. Conversely, a higher participation of diseased feline in sporotrichosis transmission was evidenced, especially by the colonization of their oral cavity. Sporothrix brasiliensis equally affects and colonizes animals from distinct Rio de Janeiro state areas. Thus, we hypothesize that sporotrichosis is a uniform endemic throughout the state, whose transmission depends mainly on the contact with cats with sporotrichosis. Since Rio de Janeiro displays a world unique epidemic model of the disease, not fully understood, data on the infected and non-infected animals can be of major importance for future strategies of sporotrichosis prevention and control. Finally, considering the importance of the current concept of "one health", the experience here observed can be helpful for distinct epizootias and/or zoonosis.


Asunto(s)
Enfermedades de los Gatos/epidemiología , Sporothrix/clasificación , Esporotricosis/veterinaria , Animales , Brasil/epidemiología , Enfermedades de los Gatos/microbiología , Gatos , Dermatomicosis/microbiología , Femenino , Pezuñas y Garras/microbiología , Masculino , Boca/microbiología , Mascotas/microbiología , Esporotricosis/epidemiología , Esporotricosis/transmisión , Zoonosis/epidemiología , Zoonosis/microbiología
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