“…1,2 Since then, the bacterium has been reported infecting a number of invertebrate species, including fleas, mosquitoes, ticks, mites, and booklice. [3][4][5][6][7][8] Despite an apparent broad host range, the majority of the literature reports of R. felis have been on fleas of the genus Ctenocephalides; namely, C. felis felis and Ctenocephalides canis collected from domestic dogs and cats. [9][10][11][12] In Brazil, R. felis was reported infecting Ctenocephalides fleas in the states of Sã o Paulo, Minas Gerais, and Rio de Janeiro, all in the Southeastern region of the country.…”