TY - JOUR AU - Herrick, Kristen AU - Pena, Sandra AU - Yaglom, Hayley AU - Layton, Brent AU - Moors, Amanda AU - Loftis, Amanda AU - Condit, Marah AU - Singleton, Joseph AU - Kato, Cecilia AU - Denison, Amy AU - Ng, Dianna AU - Mertins, James AU - Paddock, Christopher T1 - Rickettsia parkeri Rickettsiosis, Arizona, USA T2 - Emerging Infectious Disease journal PY - 2016 VL - 22 IS - 5 SP - 780 SN - 1080-6059 AB - In the United States, all previously reported cases of Rickettsia parkeri rickettsiosis have been linked to transmission by the Gulf Coast tick (Amblyomma maculatum). Here we describe 1 confirmed and 1 probable case of R. parkeri rickettsiosis acquired in a mountainous region of southern Arizona, well beyond the recognized geographic range of A. maculatum ticks. The likely vector for these 2 infections was identified as the Amblyomma triste tick, a Neotropical species only recently recognized in the United States. Identification of R. parkeri rickettsiosis in southern Arizona demonstrates a need for local ecologic and epidemiologic assessments to better understand geographic distribution and define public health risk. Education and outreach aimed at persons recreating or working in this region of southern Arizona would improve awareness and promote prevention of tickborne rickettsioses. KW - Rickettsia parkeri KW - Amblyomma triste KW - Amblyomma maculatum KW - eschar KW - rickettsial KW - rickettsiosis KW - vector-borne infections KW - ticks KW - Arizona KW - bacterial infection KW - bacteria KW - USA DO - 10.3201/eid2205.151824 UR - https://wwwnc.cdc.gov/eid/article/22/5/15-1824_article ER - End of Reference