Rangelia vitalii in free-living crab-eating foxes (Cerdocyon thous) in Uruguay.

Autor: De Lorenzo C; Setor de Patologia Veterinária, Departamento de Patologia Clínica Veterinária, Faculdade de Veterinária (FAVET), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil., Boabaid FM; Polo de Desarrollo Universitario del Instituto Superior de la Carne, Sede Tacuarembó, Centro Universitario Regional (CENUR) Noreste, Universidad de la República, Ruta 5, Km 386, Tacuarembó 45000, Uruguay., de Oliveira LGS; Instituto Nacional de Investigación Agropecuaria (INIA), Plataforma de Investigación en Salud Animal, Estación Experimental INIA Tacuarembó, Ruta 5, Km 386, Tacuarembó 45000, Uruguay., Bianchi MV; Setor de Patologia Veterinária, Departamento de Patologia Clínica Veterinária, Faculdade de Veterinária (FAVET), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil., Félix ML; Laboratorio de Vectores y enfermedades transmitidas, Departamento de Ciencias Biológicas, CENUR Litoral Norte - Salto, Universidad de la República, Rivera 1350, CP, 50000 Salto, Uruguay., Armúa-Fernández MT; Laboratorio de Vectores y enfermedades transmitidas, Departamento de Ciencias Biológicas, CENUR Litoral Norte - Salto, Universidad de la República, Rivera 1350, CP, 50000 Salto, Uruguay., Soares JF; Laboratório de Protozoologia e Rickettsioses Vetoriais (ProtozooVet), Departamento de Patologia Clínica Veterinária, FAVET, UFRGS, Porto Alegre, RS 91540-000, Rio Grande do Sul, Brazil. Electronic address: joao.soares@ufrgs.br., Venzal JM; Laboratorio de Vectores y enfermedades transmitidas, Departamento de Ciencias Biológicas, CENUR Litoral Norte - Salto, Universidad de la República, Rivera 1350, CP, 50000 Salto, Uruguay., Sonne L; Setor de Patologia Veterinária, Departamento de Patologia Clínica Veterinária, Faculdade de Veterinária (FAVET), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
Jazyk: angličtina
Zdroj: Ticks and tick-borne diseases [Ticks Tick Borne Dis] 2021 Sep; Vol. 12 (5), pp. 101765. Date of Electronic Publication: 2021 Jun 04.
DOI: 10.1016/j.ttbdis.2021.101765
Abstrakt: Rangelia vitalii is a protozoan parasite that causes a hemorrhagic and hemolytic disease in dogs known as rangeliosis. Current reports of the disease are concentrated in the southern and southeastern regions of Brazil, as well as in Uruguay, Argentina, and Paraguay, and mainly concern domestic dogs. South American wild canids, such as the crab-eating fox (Cerdocyon thous), the pampas fox (Lycalopex gymnocercus), and the maned wolf (Chrysocyon brachyurus) may also be affected, although existing reports are restricted to Brazil. The present study aimed to detect R. vitalii parasitism in the Uruguayan wild fox population. DNA extracted from the blood and/or spleen samples of road-killed C. thous and L. gymnocercus found in northern Uruguay were subjected to polymerase chain reaction (PCR) to amplify a 551-bp fragment of the Rangelia 18S rRNA gene. A total of 62 wild canids, including 38 C. thous and 24L. gymnocercus, were analyzed. Five crab-eating fox samples (13.2%) were positive for R. vitalii, with 99.5-100% identity between the sequences. All samples from pampas fox tested negative for R. vitalii. When compared with the R. vitalii sequences available in GenBank, a similarity of 98.9-100% was revealed. Molecular analysis results suggest that R. vitalii is circulating in the crab-eating fox population in Uruguay; however, its veterinary relevance for these foxes remains unknown.
(Copyright © 2021. Published by Elsevier GmbH.)
Databáze: MEDLINE
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