{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,10]],"date-time":"2026-03-10T10:31:34Z","timestamp":1773138694980,"version":"3.50.1"},"reference-count":30,"publisher":"Oxford University Press (OUP)","issue":"5","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2020,9,7]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Rickettsia parkeri, a tick-borne pathogen distributed throughout several countries of the Americas, causes a mild to moderately severe, eschar-associated spotted fever rickettsiosis. Although most U.S. cases of R. parkeri rickettsiosis are reported from southeastern states, some have been reported recently from remote regions of southern Arizona. These cases are linked to R. parkeri-infected ticks of the Amblyomma maculatum (Acari: Ixodidae) group found in several isolated mountain ranges of southern Arizona and New Mexico, referred to as \u2018sky islands\u2019. Archival records also document ticks of the A. maculatum group collected from domestic and wild animals in West Texas. We surveyed sites in two sky island chains of Jeff Davis and Brewster counties to document the off-host occurrence of these ticks and identify the presence of R. parkeri in the Trans-Pecos region of Texas. During August 2019, 43 adult A. maculatum group ticks were flagged from vegetation or removed from a road-killed, female mule deer. Of 39 samples evaluated by PCR, eight contained a partial sca0 sequence with complete identity to R. parkeri and two with complete identity to \u2018Candidatus Rickettsia andeanae\u2019, a species of undetermined pathogenicity. Four isolates of R. parkeri were obtained using cell culture. Persons at risk for R. parkeri rickettsiosis include those who work or recreate in these mountains, such as hikers, backpackers, research scientists, foresters, and border enforcement personnel. Additional investigations are needed to define the distribution of these medically important arthropods in other parts of the southwestern United States and northern Mexico.<\/jats:p>","DOI":"10.1093\/jme\/tjaa059","type":"journal-article","created":{"date-parts":[[2020,4,6]],"date-time":"2020-04-06T03:25:20Z","timestamp":1586143520000},"page":"1582-1587","source":"Crossref","is-referenced-by-count":15,"title":["Rickettsia parkeri (Rickettsiales: Rickettsiaceae) in the Sky Islands of West Texas"],"prefix":"10.1093","volume":"57","author":[{"given":"Christopher D","family":"Paddock","sequence":"first","affiliation":[{"name":"Rickettsial Zoonoses Branch, Centers for Disease Control and Prevention, Atlanta, GA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joy A","family":"Hecht","sequence":"additional","affiliation":[{"name":"Rickettsial Zoonoses Branch, Centers for Disease Control and Prevention, Atlanta, GA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Amy N","family":"Green","sequence":"additional","affiliation":[{"name":"Animal and Plant Health Inspection Service, United States Department of Agriculture, El Paso, TX"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kenneth A","family":"Waldrup","sequence":"additional","affiliation":[{"name":"Zoonosis Control, Texas Department of State Health Services, El Paso, TX"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pete D","family":"Teel","sequence":"additional","affiliation":[{"name":"Department of Entomology, Texas A&M University, College Station, TX"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sandor E","family":"Karpathy","sequence":"additional","affiliation":[{"name":"Rickettsial Zoonoses Branch, Centers for Disease Control and Prevention, Atlanta, GA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tammi L","family":"Johnson","sequence":"additional","affiliation":[{"name":"Department of Wildlife and Fisheries Sciences, Texas A&M AgriLife Research, Texas A&M University, Uvalde, TX"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2020,4,4]]},"reference":[{"key":"2020090707140147800_CIT0001","doi-asserted-by":"crossref","first-page":"1743","DOI":"10.1093\/jme\/tjx138","article-title":"Rickettsia parkeri (Rickettsiales: Rickettsiaceae) detected in ticks of the Amblyomma maculatum (Acari: Ixodidae) group collected from multiple locations in southern Arizona","volume":"54","author":"Allerdice","year":"2017","journal-title":"J. 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Parasitol"},{"key":"2020090707140147800_CIT0008","doi-asserted-by":"crossref","first-page":"1118","DOI":"10.1603\/ME13010","article-title":"Isolation of \u201cCandidatus Rickettsia andeanae\u201d (Rickettsiales: Rickettsiaceae) in embryonic cells of naturally infected Amblyomma maculatum (Ixodida: Ixodidae)","volume":"50","author":"Ferrari","year":"2013","journal-title":"J. Med. Entomol"},{"key":"2020090707140147800_CIT0009","first-page":"47","article-title":"Confirmation of the presence of Amblyomma triste Koch, 1844 (Acari: Ixodidae), in Mexico","volume":"11","author":"Guzm\u00e1n-Cornejo","year":"2006","journal-title":"Syst. Appl. Acarol"},{"key":"2020090707140147800_CIT0010","first-page":"56","article-title":"Sky islands of Arizona","volume-title":"Nat. Hist","author":"Heald","year":"1951"},{"key":"2020090707140147800_CIT0011","doi-asserted-by":"crossref","first-page":"780","DOI":"10.3201\/eid2205.151824","article-title":"Rickettsia parkeri rickettsiosis, Arizona, USA","volume":"22","author":"Herrick","year":"2016","journal-title":"Emerg. Infect. Dis"},{"key":"2020090707140147800_CIT0012","doi-asserted-by":"crossref","first-page":"314","DOI":"10.1128\/JCM.01723-12","article-title":"Assessment of real-time PCR assay for detection of Rickettsia spp. and Rickettsia rickettsii in banked clinical samples","volume":"51","author":"Kato","year":"2013","journal-title":"J. Clin. Microbiol"},{"key":"2020090707140147800_CIT0013","first-page":"46","volume-title":"Ectoparasite diversity and Rickettsia testing of ectoparasites on feral swine (Sus scrofa) and collared peccaries (Pecari tajacu) in the Davis Mountains of Texas","author":"Kubala","year":"2012"},{"key":"2020090707140147800_CIT0014","doi-asserted-by":"crossref","first-page":"610","DOI":"10.1186\/s13071-018-3186-9","article-title":"The Amblyomma maculatum Koch, 1844 (Acari: Ixodidae) group of ticks: phenotypic plasticity or incipient speciation?","volume":"11","author":"Lado","year":"2018","journal-title":"Parasit. Vectors"},{"key":"2020090707140147800_CIT0015","doi-asserted-by":"crossref","first-page":"40","DOI":"10.2307\/40025670","article-title":"Biotic communities in the sub-Mogollon region of the inland Southwest","volume":"2","author":"Lowe","year":"1961","journal-title":"J. Ariz. Acad Sci"},{"key":"2020090707140147800_CIT0016","doi-asserted-by":"crossref","first-page":"74","DOI":"10.1111\/j.1574-695X.2011.00905.x","article-title":"In vitro propagation of Candidatus Rickettsia andeanae isolated from Amblyomma maculatum","volume":"64","author":"Luce-Fedrow","year":"2012","journal-title":"FEMS Immunol. Med. 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Microbiol"},{"key":"2020090707140147800_CIT0022","doi-asserted-by":"crossref","first-page":"1482","DOI":"10.2307\/4582985","article-title":"Observations on an infectious agent from Amblyomma maculatum","volume":"54","author":"Parker","year":"1939","journal-title":"Public Health Rep"},{"key":"2020090707140147800_CIT0023","doi-asserted-by":"crossref","first-page":"1140","DOI":"10.1890\/08-1808.1","article-title":"Topographic influences on vegetation mosaics and tree diversity in the Chihuahuan Desert borderlands","volume":"91","author":"Poulos","year":"2010","journal-title":"Ecology"},{"key":"2020090707140147800_CIT0024","doi-asserted-by":"crossref","first-page":"1236","DOI":"10.1139\/X09-052","article-title":"Fire regimes of the pi\u00f1on-juniper woodlands of Big Bend National Park and the Davis Mountains, west Texas, USA","volume":"39","author":"Poulos","year":"2009","journal-title":"Can. J. For. Res"},{"key":"2020090707140147800_CIT0025","doi-asserted-by":"crossref","first-page":"1576","DOI":"10.1128\/JB.173.5.1576-1589.1991","article-title":"Genotypic identification of rickettsiae and estimation of intraspecies sequence divergence for portions of two rickettsial genes","volume":"173","author":"Regnery","year":"1991","journal-title":"J. Bacteriol"},{"key":"2020090707140147800_CIT0026","doi-asserted-by":"crossref","first-page":"2058","DOI":"10.1128\/JCM.34.9.2058-2065.1996","article-title":"Differentiation of spotted fever group rickettsiae by sequencing and analysis of restriction fragment length polymorphism of PCR-amplified DNA of the gene encoding the protein rOmpA","volume":"34","author":"Roux","year":"1996","journal-title":"J. Clin. Microbiol"},{"key":"2020090707140147800_CIT0027","first-page":"1","article-title":"The vegetation of a desert mountain range as conditioned by climatic factors","volume":"217","author":"Shreve","year":"1915","journal-title":"Carnegie Inst. 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