“Candidatus Rickettsia asemboensis” in Rhipicephalus sanguineus ticks, Brazil

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“Candidatus Rickettsia asemboensis” is an obligate intracellular bacterium of the Rickettsiales order, genetically related to species belonging to the Rickettsia felis group, agents of flea-borne spotted fever. Here we report for the first time the detection of “Ca. R. asemboensis”, a flea-associated organism, in Rhipicephalus sanguineus ticks. It is the first occurrence of this emerging bacterium in Brazil, which increases the geographical distribution of this R. felis-like agent.




Dall’Agnol, B., Souza, U., Webster, A., Weck, B., Stenzel, B., Labruna, M., … Reck, J. (2017). “Candidatus Rickettsia asemboensis” in Rhipicephalus sanguineus ticks, Brazil. Acta Tropica, 167, 18–20. https://doi.org/10.1016/j.actatropica.2016.12.008

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