Detection of anti: Rickettsia spp. antibodies in domestic chickens of extensive breeding in an endemic area for spotted fever in the state of Rio Grande do Sul, Brazil

Ciência Rural

Vogel, Fernanda Silveira Flores²  Maciel, Jonas Fernandes²  Moraes-Filho, Jonas¹  Labruna, Marcelo Bahia¹  Botton, Sônia de Avila²  Krawczak, Felipe da Silva¹  Oliveira, Caroline Sobotyk de²  Sangioni, Luis Antonio² 

[1] Universidade de São Paulo, São Paulo, Brasil;Universidade Federal de Santa Maria (UFSM), Santa Maria, Brasil

关键词: indirect immunofluorescence assay;    antibody;    rickettsiosis;    domestic chicken;   

DOI  :  

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

The goal of this study was to investigate anti-Rickettsia spp. antibodies in sera of domestic chickens (Gallus gallus domesticus) of extensive breeding in Cerro Largo county, considered an endemic area for spotted fever in the State of Rio Grande do Sul, Brazil. Three hundred blood samples were collected and anti-Rickettsia spp. antibodies were evaluated by indirect immunofluorescence assay (IFA) in the sera obtained. The occurrence of anti-Rickettsia spp. antibodies detected in this study was 1.33% (4/300), with endpoint titers ranging from 64 to 256 for Rickettsia rickettsiii, R. parkeri and/or R. bellii. The results suggest these domestic chickens do not participate as a reservoir and/or amplifying host in the epidemiology of spotted fever in that endemic area. The present study consists in the first serological survey in Gallus gallus domesticus to Rickettsiae-spotted fever group in Brazil.

【 授权许可】

CC BY-NC