Identification of Ctenocephalides felis fleas as a host of Rickettsia felis, the agent of a spotted fever rickettsiosis in Yucatań, Mexico.

摘要: In search for the vector of recently recognized spotted fever rickettsiosis Yucatan, ticks, fleas, and lice were collected from vegetation dogs in localities where seropositive persons had been found. The arthropods examined by polymerase chain reaction (PCR) using primers genus-specific 17-kDa protein gene followed restriction fragment length polymorphism (RFLP) DNA sequencing. Eleven (20%) 54 pools Ctenocephalides felis fleas contained Rickettsia felis. None 219 Amblyomma cajennense, 474 Rhiphicephalus sanguineus, 258 Boophilus sp. 33 Poliplax species Rickettsia. identity rickettsial was confirmed as R. PCR/RFLP citrate synthase outer membrane A genes results indicate that host Yucatan is C. suggest has infected >5% population can present a dengue-like ...