Seroprevalence and risk factors to Ehrlichia spp. and Rickettsia spp. in dogs from the Pantanal Region of Mato Grosso State, Brazil

被引：52
作者：
Melo, Andreia L. T. [1 ]
Martins, Thiago F. [2 ]
Horta, Mauricio C. [3 ]
Moraes-Filho, Jonas [2 ]
Pacheco, Richard C. [1 ]
Labruna, Marcelo B. [2 ]
Aguiar, Daniel M. [1 ]
机构：
[1] Univ Fed Mato Grosso, Fac Agron Med Vet & Zootecnia, BR-78060900 Cuiaba, MT, Brazil
[2] Univ Sao Paulo, Fac Med Vet & Zootecnia, Sao Paulo, Brazil
[3] Univ Fed Vale Sao Francisco, Curso Med Vet, Petrolina, PE, Brazil
来源：
TICKS AND TICK-BORNE DISEASES | 2011年 / 2卷 / 04期
基金：
巴西圣保罗研究基金会;
关键词：
Seroprevalence; Ehrlichia spp; Rickettsia spp; Ticks; Pantanal; Brazil; SPOTTED-FEVER; SAO-PAULO; WESTERN AMAZON; ENDEMIC AREA; RURAL-AREAS; TICKS ACARI; INFECTION; PREVALENCE; CANIS; IXODIDAE;
D O I：
10.1016/j.ttbdis.2011.09.007
中图分类号：
R51 [传染病];
学科分类号：
100401 ;
摘要：
Sera of 320 clogs from urban and rural areas of a Pantanal region of Brazil were evaluated for rickettsial (Rickettsia rickettsii, R. parkeri, R. amblyommii, R. rhipicephali, R. fells, and R. bellii) and ehrlichial (Ehrlichia canis) infection by the immunofluorescence assay (IFA). Risk factors for ehrlichiosis or rickettsiosis were also evaluated. Positive reaction against Ehrlichia spp. was detected in 227 (70.9%) dogs, 119 (74.3%) from an urban area and 108 (67.5%) from rural areas (P > 0.05). For Rickettsia spp., 152 (47.5%) dogs were positive, 31 (19.3%) from urban and 121 (75.6%) from rural areas (P < 0.05). Highest anti-Rickettsia spp. endpoint titers were observed for R. amblyommii, suggesting homologous reactions to this agent or a very closely related organism. While most of the urban dogs were found parasitized by the tick Rhipicephalus sanguineus, infestations on rural dogs were predominated by Amblyomma cajenennse. Rickettsial infection was significantly higher (P < 0.05) in rural dogs, in dogs with hunting practice, or in A. cajennense-infested dogs. (C) 2011 Elsevier GmbH. All rights reserved.
引用
收藏
页码：213 / 218
页数：6
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