Rickettsia parkeri in free-ranging wild canids from Brazilian Pampa.

Autor: Dall'Agnol B; Instituto de Pesquisas Veterinárias Desidério Finamor (IPVDF), Eldorado do Sul, RS, Brazil.; Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil., Souza UA; Instituto de Pesquisas Veterinárias Desidério Finamor (IPVDF), Eldorado do Sul, RS, Brazil., Weck B; Instituto de Pesquisas Veterinárias Desidério Finamor (IPVDF), Eldorado do Sul, RS, Brazil., Trigo TC; Fundação Zoobotânica do Rio Grande do Sul (FZB-RS), Porto Alegre, RS, Brazil., Jardim MMA; Fundação Zoobotânica do Rio Grande do Sul (FZB-RS), Porto Alegre, RS, Brazil., Costa FB; Universidade de São Paulo (USP), São Paulo, SP, Brazil., Labruna MB; Universidade de São Paulo (USP), São Paulo, SP, Brazil., Peters FB; Área de Vida Assessoria e Consultoria em Biologia e Meio Ambiente, Canoas, RS, Brazil., Favarini MO; Área de Vida Assessoria e Consultoria em Biologia e Meio Ambiente, Canoas, RS, Brazil., Mazim FD; Ka'aguy Consultoria Ambiental, Pelotas, RS, Brazil., Ferreira CAS; Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil., Reck J; Instituto de Pesquisas Veterinárias Desidério Finamor (IPVDF), Eldorado do Sul, RS, Brazil.
Jazyk: angličtina
Zdroj: Transboundary and emerging diseases [Transbound Emerg Dis] 2018 Apr; Vol. 65 (2), pp. e224-e230. Date of Electronic Publication: 2017 Nov 08.
DOI: 10.1111/tbed.12743
Abstrakt: Spotted fevers are tick-borne diseases associated with various Rickettsia species. Rickettsia parkeri sensu stricto (s.s.) is the agent of an emerging eschar-associated rickettsiosis in humans from the USA and South American Pampa. Considering that R. parkeri s.s. is restricted to Americas and the potential role of dogs in the epidemiology of the disease, it is thus reasonable to hypothesize that wild canids could be involved in the enzootic cycle of this rickettsiosis. The aim of this work was to investigate the potential role of the wild canids from Pampa, Cerdocyon thous (crab-eating fox) and Lycalopex gymnocercus (Pampas fox), in the ecology of R. parkeri s.s. For that, 32 live-trapped free-ranging wild canids were sampled. Ticks were observed in 30 of the 32 foxes. Of the 292 ticks collected, 22 (7.5%) were positive by PCR for the presence of R. parkeri s.s. DNA. Also, 20 (62%) wild canids showed antibodies against R. parkeri. The results suggest that wild canids are involved in the enzootic cycle of R. parkeri s.s. in the Pampa biome and could be responsible for pathogen (and its vectors) dispersal.
(© 2017 Blackwell Verlag GmbH.)
Databáze: MEDLINE
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