{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,9]],"date-time":"2026-10-09T18:57:30Z","timestamp":1791572250032,"version":"4.3.4"},"reference-count":45,"publisher":"American Society of Tropical Medicine and Hygiene","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2014,12,3]]},"abstract":"<jats:p><jats:italic>Rickettsia parkeri<\/jats:italic>, a newly recognized tick-borne pathogen of humans in the Americas, is a confirmed cause of spotted fever group rickettsiosis in Argentina. Until recently, almost all cases of <jats:italic>R. parkeri<\/jats:italic> rickettsiosis in Argentina have originated from the Paran\u00e1 River Delta, where entomological surveys have identified populations of <jats:italic>R. parkeri<\/jats:italic>-infected <jats:italic>Amblyomma triste<\/jats:italic> ticks. In this report, we describe confirmed cases of <jats:italic>R. parkeri<\/jats:italic> rickettsiosis from C\u00f3rdoba and La Rioja provinces, which are located several hundred kilometers inland, and in a more arid ecological region, where <jats:italic>A. triste<\/jats:italic> ticks do not occur. Additionally, we identified questing <jats:italic>A. tigrinum<\/jats:italic> ticks naturally infected with <jats:italic>R. parkeri<\/jats:italic> in C\u00f3rdoba province. These data provide evidence that another human-biting tick species serves as a potential vector of <jats:italic>R. parkeri<\/jats:italic> in Argentina and possibly, other countries of South America.<\/jats:p>","DOI":"10.4269\/ajtmh.14-0334","type":"journal-article","created":{"date-parts":[[2014,10,28]],"date-time":"2014-10-28T07:24:05Z","timestamp":1414481045000},"page":"1156-1160","source":"Crossref","is-referenced-by-count":57,"title":["Rickettsia parkeri Rickettsiosis in Different Ecological Regions of Argentina and Its Association with Amblyomma tigrinum as a Potential Vector"],"prefix":"10.4269","volume":"91","author":[{"given":"Yamila","family":"Romer","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Santiago","family":"Nava","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Francisco","family":"Govedic","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gabriel","family":"Cicuttin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amy M.","family":"Denison","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joseph","family":"Singleton","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aubree J.","family":"Kelly","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cecilia Y.","family":"Kato","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christopher D.","family":"Paddock","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2795","reference":[{"key":"R1","series-title":"Emerg Infect Dis","first-page":"1169","article-title":"Rickettsia parkeri rickettsiosis, Argentina","volume":"17","author":"Romer","year":"2011"},{"key":"R2","series-title":"Sitios de Inter\u00e9s Geol\u00f3gicos de la Rep\u00fablica Argentina. Servicio Geol\u00f3gico Minero Argentino","first-page":"461","article-title":"R\u00edo de la Plata y Delta del Paran\u00e1","author":"Violante","year":"2008"},{"key":"R3","series-title":"Medicina (B Aires)","first-page":"723","article-title":"Fiebre manchada por rickettsias en el Delta del Paran\u00e1: una enfermedad emergente","volume":"67","author":"Seijo","year":"2007"},{"key":"R4","series-title":"Emerg Infect Dis","first-page":"1894","article-title":"Rickettsia parkeri in Argentina","volume":"14","author":"Nava","year":"2008"},{"key":"R5","series-title":"Temas de Zoonosis V","first-page":"147","article-title":"Fiebres manchadas por rickettsias en la Mesopotamia y Pampa H\u00fameda","author":"Romer","year":"2011"},{"key":"R6","series-title":"Ticks Tick Borne Dis","first-page":"386","article-title":"Distribution and genetic variation of Amblyomma triste (Acari: Ixodidae) in Argentina","volume":"4","author":"Guglielmone","year":"2013"},{"key":"R7","series-title":"Clin Infect Dis","first-page":"635","article-title":"Detection of Rickettsia rickettsii, Rickettsia parkeri, and Rickettsia akari in skin biopsy specimens using a multiplex real-time polymerase chain reaction assay","volume":"59","author":"Denison","year":"2014"},{"key":"R8","series-title":"Clin Infect Dis","first-page":"1188","article-title":"Rickettsia parkeri rickettsiosis and its clinical distinction from Rocky Mountain spotted fever","volume":"47","author":"Paddock","year":"2008"},{"key":"R9","series-title":"Syst Parasitol","first-page":"99","article-title":"The Amblyomma maculatum Koch, 1844 (Acari: Ixodidae: Amblyomminae) tick group: diagnostic characters, description of the larva of A. parvitarsum Neumann, 1901, 16S rDNA sequences, distribution and hosts","volume":"60","author":"Estrada-Pe\u00f1a","year":"2005"},{"key":"R10","series-title":"J Clin Microbiol","first-page":"4572","article-title":"Molecular method for identification of Rickettsia species in clinical and environmental samples","volume":"44","author":"Jado","year":"2006"},{"key":"R11","series-title":"J Bacteriol","first-page":"1576","article-title":"Genotypic identification of rickettsiae and estimation of intraspecies sequence divergence for portions of two rickettsial genes","volume":"173","author":"Regnery","year":"1991"},{"key":"R12","series-title":"Nucleic Acids Symp Ser","first-page":"95","article-title":"BioEdit: a user friendly biological sequence alignment editor and analysis program for windows 95\/98\/NT","volume":"41","author":"Hall","year":"1999"},{"key":"R13","series-title":"Nucleic Acids Res","first-page":"4673","article-title":"CLUSTAL W: improving the sensitivity of progressive multiple sequence alignment through sequence weighting, position-specific gap penalities and weight matrix choice","volume":"22","author":"Thompson","year":"1994"},{"key":"R14","series-title":"Mol Biol Evol","first-page":"2731","article-title":"MEGA5: molecular evolutionary genetics analysis using maximum likelihood, evolutionary distance, and maximum parsimony methods","volume":"28","author":"Tamura","year":"2011"},{"key":"R15","series-title":"Mem Inst Oswaldo Cruz","first-page":"123","article-title":"Molecular identification of Rickettsia parkeri infecting Amblyomma triste ticks in an area of Argentina where cases of rickettsiosis were diagnosed","volume":"108","author":"Cicuttin","year":"2013"},{"key":"R16","series-title":"Emerg Infect Dis","first-page":"751","article-title":"Gulf Coast ticks (Amblyomma maculatum) and Rickettsia parkeri, United States","volume":"13","author":"Sumner","year":"2007"},{"key":"R17","series-title":"Am J Trop Med Hyg","first-page":"350","article-title":"Evidence of rickettsial spotted fever and ehrlichial infections in a subtropical territory of Jujuy, Argentina","volume":"61","author":"Ripoll","year":"1999"},{"key":"R18","series-title":"Am J Trop Med Hyg","first-page":"687","article-title":"Rocky Mountain spotted fever in Argentina","volume":"78","author":"Paddock","year":"2008"},{"key":"R19","series-title":"Am J Trop Med Hyg","first-page":"691","article-title":"Case report: a patient from Argentina infected with Rickettsia massiliae","volume":"82","author":"Garci\u00e1-Garci\u00e1","year":"2010"},{"key":"R20","series-title":"Ann N Y Acad Sci","first-page":"156","article-title":"Ecology of Rickettsia in South America","volume":"1166","author":"Labruna","year":"2009"},{"key":"R21","series-title":"Arch Dermatol","first-page":"641","article-title":"The expanding spectrum of eschar associated rickettsioses in the United States","volume":"146","author":"Cragun","year":"2010"},{"key":"R22","series-title":"Emerg Infect Dis","first-page":"778","article-title":"Detecting Rickettsia parkeri infection from eschar swab specimens","volume":"19","author":"Myers","year":"2013"},{"key":"R23","series-title":"Rev Inst Med Trop S\u00e3o Paulo","first-page":"313","article-title":"Lymphatic cutaneous rickettsiosis caused by Rickettsia conorii in Uruguay","volume":"32","author":"Conti-D\u00edaz","year":"1990"},{"key":"R24","series-title":"Rev Inst Med Trop Sao Paulo","first-page":"337","article-title":"Serological evidence of Rickettsia parkeri as the etiological agent of rickettsiosis in Uruguay","volume":"51","author":"Conti-D\u00edaz","year":"2009"},{"key":"R25","series-title":"Eco-regiones de la Argentina","author":"Burkart","year":"1999"},{"key":"R26","series-title":"Biomed Res Int","article-title":"Comparative evaluation of infected and noninfected Amblyomma triste ticks with Rickettsia parkeri, the agent of an emerging rickettsiosis in the New World","volume":"2013","author":"Nieri-Bastros","year":"2013"},{"key":"R27","series-title":"Emerg Infect Dis","first-page":"1493","article-title":"Rickettsia parkeri in Amblyomma triste from Uruguay","volume":"10","author":"Venzal","year":"2004"},{"key":"R28","series-title":"Emerg Infect Dis","first-page":"1804","article-title":"Rickettsia parkeri in Uruguay","volume":"12","author":"Pacheco","year":"2006"},{"key":"R29","series-title":"Rev Inst Med Trop Sao Paulo","first-page":"131","article-title":"Rickettsia parkeri: a rickettsial pathogen transmitted by ticks in endemic areas for spotted fever rickettsiosis in southern Uruguay","volume":"54","author":"Venzal","year":"2012"},{"key":"R30","series-title":"Am J Trop Med Hyg","first-page":"1203","article-title":"Case report: a confirmed case of Rickettsia parkeri infection in a traveler from Uruguay","volume":"89","author":"Portillo","year":"2013"},{"key":"R31","series-title":"Emerg Infect Dis","first-page":"1111","article-title":"Rickettsia parkeri in Brazil","volume":"13","author":"Labruna","year":"2007"},{"key":"R32","series-title":"Medicina (B Aires)","first-page":"225","article-title":"Ticks (Acari: Ixodida: Argasidae, Ixodidae) infesting humans in northwestern C\u00f3rdoba Province, Argentina","volume":"66","author":"Nava","year":"2006"},{"key":"R33","series-title":"Vector Borne Zoonotic Dis","first-page":"953","article-title":"Rickettsia infection in dogs and Rickettsia parkeri in Amblyomma tigrinum ticks, Cochabamba Department, Bolivia","volume":"10","author":"Tomassone","year":"2010"},{"key":"R34","series-title":"Ticks Tick Borne Dis","first-page":"660","article-title":"First molecular detection of Rickettsia parkeri in Amblyomma tigrinum and Amblyomma dubitatum ticks in Uruguay","volume":"5","author":"Lado","year":"2014"},{"key":"R35","series-title":"Emerg Infect Dis","first-page":"2350","article-title":"Rickettsia parkeri in Amblyomma maculatum ticks, North Carolina, USA, 2009\u20132010","volume":"17","author":"Varela-Stokes","year":"2011"},{"key":"R36","series-title":"Proc Entomol Soc Wash","first-page":"143","article-title":"Concerning the identity of Amblyomma maculatum, A. tigrinum, A. triste, and A. ovatum of Koch, 1944 (Acarina, Ixodidae)","volume":"58","author":"Kohls","year":"1956"},{"key":"R37","series-title":"Exp Appl Acarol","first-page":"983","article-title":"Amblyomma tigrinum (Acari: Ixodidae) in relation to phytogeography of central-northern Argentina with notes on hosts and seasonal distribution","volume":"24","author":"Guglielmone","year":"2000"},{"key":"R38","series-title":"Vet Parasitol","first-page":"124","article-title":"The natural hosts of larvae and nymphs of Amblyomma tigrinum Koch, 1844 (Acari: Ixodidae)","volume":"140","author":"Nava","year":"2006"},{"key":"R39","series-title":"Temas de Zoonosis III","first-page":"269","article-title":"Las garrapatas del g\u00e9nero Amblyomma como par\u00e1sitos de humanos en la Argentina","author":"Guglielmone","year":"2006"},{"key":"R40","series-title":"Exp Appl Acarol","first-page":"83","article-title":"Ticks (Ixodidae) on humans in South America","volume":"40","author":"Guglielmone","year":"2006"},{"key":"R41","series-title":"RIA","first-page":"133","article-title":"Las garrapatas Argentinas del g\u00e9nero Amblyomma (Acari: Ixodidae): distribution y hospedadores","volume":"35","author":"Guglielmone","year":"2006"},{"key":"R42","series-title":"Ann Trop Med Parasitol","first-page":"769","article-title":"Ticks (Ixodida: Ixodiae) parasitizing humans in Uruguay","volume":"97","author":"Venzal","year":"2003"},{"key":"R43","series-title":"Emerg Infect Dis","first-page":"344","article-title":"Coxiella burnetii in ticks, Argentina","volume":"19","author":"Pacheco","year":"2013"},{"key":"R44","series-title":"Emerg Infect Dis","first-page":"1953","article-title":"Molecular detection of Ehrlichia chaffeensis in Amblyomma parvum ticks, Argentina","volume":"14","author":"Tomassone","year":"2008"},{"issue":"(Suppl 1)","key":"R45","series-title":"Acta Med Costarric","first-page":"4","article-title":"The challenges of rickettsial diagnosis, research, and awareness in Latin America","volume":"55","author":"Walker","year":"2013"}],"container-title":["The American Society of Tropical Medicine and Hygiene"],"original-title":[],"link":[{"URL":"https:\/\/www.ajtmh.org\/view\/journals\/tpmd\/91\/6\/article-p1156.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.ajtmh.org\/downloadpdf\/journals\/tpmd\/91\/6\/article-p1156.xml","content-type":"text\/html","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/www.ajtmh.org\/downloadpdf\/journals\/tpmd\/91\/6\/article-p1156.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,8,7]],"date-time":"2024-08-07T21:06:13Z","timestamp":1723064773000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ajtmh.org\/view\/journals\/tpmd\/91\/6\/article-p1156.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014,12,3]]},"references-count":45,"journal-issue":{"issue":"6"},"URL":"https:\/\/doi.org\/10.4269\/ajtmh.14-0334","relation":{},"ISSN":["0002-9637","1476-1645"],"issn-type":[{"value":"0002-9637","type":"print"},{"value":"1476-1645","type":"electronic"}],"subject":[],"published":{"date-parts":[[2014,12,3]]}}}