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Rickettsia felis (Rickettsiales: Rickettsiaceae) in Ctenocephalides felis felis (Siphonaptera: Pulicidae) in the State of São Paulo, Brazil Rickettsia felis (Rickettsiales: Rickettsiaceae) em Ctenocephalides felis felis (Siphonaptera: Pulicidae) no estado de São Paulo

Authors: M.C. Horta; A. Pinter; A. Cortez; R.M. Soares; S.M. Gennari; T.T.S. Schumaker; M.B. Labruna;

Rickettsia felis (Rickettsiales: Rickettsiaceae) in Ctenocephalides felis felis (Siphonaptera: Pulicidae) in the State of São Paulo, Brazil Rickettsia felis (Rickettsiales: Rickettsiaceae) em Ctenocephalides felis felis (Siphonaptera: Pulicidae) no estado de São Paulo

Abstract

Samples of 10 and 14 Ctenocephalides felis felis fleas were collected on dogs from Pedreira and Mogi das Cruzes municipalities, respectively, in the State of São Paulo, Brazil, for detection of Rickettsia spp. Individual fleas were submitted to Polymerase Chain Reaction targeting the 17-kDa and the 190-kDa (OmpA) genes of Rickettsiae. This later gene is specific for spotted fever group. Nine fleas from Pedreira (90%) and four fleas from Mogi das Cruzes (28%) were positive for the 17-kDa gene, and eight fleas from Pedreira (80%) and four from Mogi das Cruzes (28%) were positive for 190-kDa gene. The nucleotide sequence of the 190-kDa products of one flea from Pedreira and one flea from Mogi das Cruzes were 100% identical to each other, and when compared to the GenBank Data, they were 100% identical to the 190-kDa sequence of R. felis. This was the first report of its occurrence in the State of São Paulo.Amostras de 10 e 14 pulgas Ctenocephalides felis felis foram coletadas de cães nos municípios de Pedreira e Mogi das Cruzes, respectivamente, no estado de São Paulo, para pesquisa de Rickettsia spp. As pulgas foram individualmente submetidas à reação em cadeia pela polimerase, tendo como alvo os genes 17-kDa e 190-kDa (OmpA) de Rickettsia, sendo esse último específico para o GFM. Nove pulgas de Pedreira (90%) e quatro pulgas de Mogi das Cruzes (28%) foram positivas para o gene 17-kDa, e oito pulgas de Pedreira (80%) e quatro de Mogi das Cruzes (28%) foram positivas para o gene 190-kDa. As seqüências de nucleotídeos do gene 190-kDa de uma pulga de Pedreira e de uma pulga de Mogi das Cruzes foram 100% idênticas; quando comparadas com dados existentes no GenBank, foram 100% idênticas com a seqüência parcial do gene 190-kDa de Rickettsia felis. Esse foi o primeiro relato de sua ocorrência no estado de São Paulo.

Keywords

190-kDa gene, cão, dog, Rickettsia felis, gene 190-kDa, Ctenocephalides felis felis, SF1-1100, Brazil, Animal culture

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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