{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,8]],"date-time":"2026-09-08T12:28:58Z","timestamp":1788870538978,"version":"build-2803163510"},"reference-count":36,"publisher":"Wiley","license":[{"start":{"date-parts":[[2013,1,1]],"date-time":"2013-01-01T00:00:00Z","timestamp":1356998400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"funder":[{"name":"Funda\u00e7\u00e3o de Amparo a Pesquisa do Estado de S\u00e3o Paulo"},{"DOI":"10.13039\/501100003593","name":"Conselho Nacional de Desenvolvimento Cient\u00edfico e Tecnol\u00f3gico","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100003593","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["BioMed Research International"],"published-print":{"date-parts":[[2013]]},"abstract":"<jats:p>\n                    The distribution of\n                    <jats:italic>Rickettsia parkeri<\/jats:italic>\n                    in South America has been associated with\n                    <jats:italic>Amblyomma triste<\/jats:italic>\n                    ticks. The present study evaluated under laboratory conditions two colonies of\n                    <jats:italic>A. triste<\/jats:italic>\n                    : one started from engorged females that were naturally infected by\n                    <jats:italic>R. parkeri<\/jats:italic>\n                    (designated as infected group); the other started from noninfected females (designated as control group). Both colonies were reared in parallel for five consecutive generations. Tick-na\u00efve domestic rabbits were used for feeding of each tick stage and generation.\n                    <jats:italic>R. parkeri<\/jats:italic>\n                    was preserved by transstadial maintenance and transovarial transmission in\n                    <jats:italic>A. triste<\/jats:italic>\n                    ticks for five consecutive generations, because all tested larvae, nymphs, and adults from the infected group were shown by PCR to contain rickettsial DNA. All rabbits infested by larvae, nymphs, and adults from the infected group seroconverted, indicating that these tick stages were all vector competent for\n                    <jats:italic>R. parkeri<\/jats:italic>\n                    . Expressive differences in mortality rates were observed between engorged nymphs from the infected and control groups, as indicated by 65.9% and 92.4% molting success, respectively. Our results indicate that\n                    <jats:italic>A. triste<\/jats:italic>\n                    can act as a natural reservoir for\n                    <jats:italic>R. parkeri<\/jats:italic>\n                    . However, due to deleterious effect caused by\n                    <jats:italic>R. parkeri<\/jats:italic>\n                    on engorged nymphs, amplifier vertebrate hosts might be necessary for natural long-term maintenance of\n                    <jats:italic>R. parkeri<\/jats:italic>\n                    in\n                    <jats:italic>A. triste<\/jats:italic>\n                    .\n                  <\/jats:p>","DOI":"10.1155\/2013\/402737","type":"journal-article","created":{"date-parts":[[2013,7,8]],"date-time":"2013-07-08T17:05:53Z","timestamp":1373303153000},"page":"1-6","source":"Crossref","is-referenced-by-count":27,"title":["Comparative Evaluation of Infected and Noninfected\n                    <i>Amblyomma triste<\/i>\n                    Ticks with\n                    <i>Rickettsia parkeri<\/i>\n                    , the Agent of an Emerging Rickettsiosis in the New World"],"prefix":"10.1155","volume":"2013","author":[{"given":"F. A.","family":"Nieri-Bastos","sequence":"first","affiliation":[{"name":"Faculdade de Medicina Veterin\u00e1ria e Zootecnia, Universidade de S\u00e3o Paulo, Avenida Prof. Orlando Marques de Paiva 87, Cidade Universit\u00e1ria, 05508-270 S\u00e3o Paulo, SP, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M. P. J.","family":"Szab\u00f3","sequence":"additional","affiliation":[{"name":"Faculdade de Medicina Veterin\u00e1ria e Zootecnia, Universidade Federal de Uberl\u00e2ndia, Avenida Par\u00e1 1720, Campus Umuarama-Bloco 2T, 38400-902 Uberl\u00e2ndia, MG, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R. C.","family":"Pacheco","sequence":"additional","affiliation":[{"name":"Faculdade de Agronomia e Medicina Veterin\u00e1ria, Universidade Federal do Mato Grosso, Avenida Fernando Corr\u00eaa da Costa 2367, Boa Esperan\u00e7a, 78060-900 Cuiab\u00e1, MT, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J. F.","family":"Soares","sequence":"additional","affiliation":[{"name":"Faculdade de Medicina Veterin\u00e1ria e Zootecnia, Universidade de S\u00e3o Paulo, Avenida Prof. Orlando Marques de Paiva 87, Cidade Universit\u00e1ria, 05508-270 S\u00e3o Paulo, SP, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H. S.","family":"Soares","sequence":"additional","affiliation":[{"name":"Faculdade de Medicina Veterin\u00e1ria e Zootecnia, Universidade de S\u00e3o Paulo, Avenida Prof. Orlando Marques de Paiva 87, Cidade Universit\u00e1ria, 05508-270 S\u00e3o Paulo, SP, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J.","family":"Moraes-Filho","sequence":"additional","affiliation":[{"name":"Faculdade de Medicina Veterin\u00e1ria e Zootecnia, Universidade de S\u00e3o Paulo, Avenida Prof. Orlando Marques de Paiva 87, Cidade Universit\u00e1ria, 05508-270 S\u00e3o Paulo, SP, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R. 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