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  • vector
  • The tick Rhipicephalus sanguineus has also been implicated as a vector for R. rickettsii in a few areas of Mexico and the state of Arizona in the United States ( 5 , 6 ). (cdc.gov)
  • adults
  • We determined the minimal feeding period required by A. aureolatum nymphs and adults to transmit R. rickettsii to guinea pigs. (cdc.gov)