During a study to identify zoonotic pathogens in northwestern Mexico, we detected the presence of a rickettsial agent in Dermacentor parumapertus ticks from black-tailed jackrabbits (Lepus californicus). Comparison of 4 gene sequences (gltA, htrA, ompA, and ompB) of this agent showed 99%-100% identity with sequences of Rickettsia parkeri.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6004873PMC
http://dx.doi.org/10.3201/eid2406.180058DOI Listing

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