Natural Infection of Wild Canids (Cerdocyon thous and Lycalopex gymnocercus) with the Intraendothelial Piroplasm Rangelia vitalii in Southern Brazil.
J Wildl Dis
; 51(4): 880-4, 2015 Oct.
Article
in En
| MEDLINE
| ID: mdl-26251988
Rangelia vitalii is a piroplasm that infects canines, causing lesions typical of a hemolytic disorder. Two wild canids, a crab-eating fox (Cerdocyon thous) and a Pampas fox (Lycalopex gymnocercus), were presented for necropsy in Setor de Patologia Veterinária at the Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil. On gross examination, both animals had pale mucosae and moderate tick infestation (Amblyomma aureolatum). There was severe splenomegaly, and the liver had a diffusely orange-reddish lobular pattern. The mesenteric lymph nodes were brownish and slightly enlarged. Structures compatible with R. vitalii were observed in the cytoplasm of endothelial cells in the liver, stomach, heart, kidney, lungs, lymph nodes, and bladder. The agent was characterized by PCR and genetic sequencing of liver samples and ticks. We show that parasitism with R. vitalii follows an epidemiologic cycle in which wild canids act as reservoirs.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Protozoan Infections, Animal
/
Piroplasmida
/
Canidae
/
Animals, Wild
Limits:
Animals
Country/Region as subject:
America do sul
/
Brasil
Language:
En
Journal:
J Wildl Dis
Year:
2015
Document type:
Article
Affiliation country:
Brazil
Country of publication:
United States