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. 2014 Apr;109(2):259-61.
doi: 10.1590/0074-0276140283.

Candidatus Rickettsia andeanae, a spotted fever group agent infecting Amblyomma parvum ticks in two Brazilian biomes

Fernanda Aparecida Nieri-Bastos  1 , Marcos Gomes Lopes  1 , Paulo Henrique Duarte Cançado  2 , Giselle Ayres Razera Rossa  1 , João Luiz Horácio Faccini  3 , Solange Maria Gennari  1 , Marcelo Bahia Labruna  1
Affiliations

Candidatus Rickettsia andeanae, a spotted fever group agent infecting Amblyomma parvum ticks in two Brazilian biomes

Fernanda Aparecida Nieri-Bastos et al. Mem Inst Oswaldo Cruz. 2014 Apr.

Abstract

Adult ticks of the species Amblyomma parvum were collected from the vegetation in the Pantanal biome (state of Mato Grosso do Sul) and from horses in the Cerrado biome (state of Piauí) in Brazil. The ticks were individually tested for rickettsial infection via polymerase chain reaction (PCR) targeting three rickettsial genes, gltA, ompA and ompB. Overall, 63.5% (40/63) and 66.7% (2/3) of A. parvum ticks from Pantanal and Cerrado, respectively, contained rickettsial DNA, which were all confirmed by DNA sequencing to be 100% identical to the corresponding fragments of the gltA, ompA and ompB genes of Candidatus Rickettsia andeanae. This report is the first to describe Ca. R. andeanae in Brazil.

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