{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,19]],"date-time":"2026-05-19T06:53:07Z","timestamp":1779173587143,"version":"3.51.4"},"reference-count":24,"publisher":"FapUNIFESP (SciELO)","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Rev. Soc. Bras. Med. Trop."],"published-print":{"date-parts":[[2011,12]]},"abstract":"<jats:p>INTRODUCTION: Studies on Chagas disease deal with the perspective of its occurrence in the Amazon region, which is directly correlated to the population growth and the spread of the bug biotope. The state of Rond\u00f4nia has an immense source of vectors (Triatomine) and reservoirs of Trypanosoma cruzi. Environmental changes brought forth by the deforestation in the region may cause vector behavior changes and bring these vectors to a closer contact with humans, increasing the probability of vector infection. METHODS: This study was carried out to check the occurrence of Chagas disease in the municipality of Monte Negro, Rond\u00f4nia, Brazil, based on a random sampling of the farms and people wherein blood collection from the population and capturing triatomines were done. The blood samples were submitted to serologic tests to detect antibodies of the IgG class against T. cruzi. The triatomines that were collected had their digestive tract checked for the presence of trypanosomatidae with morphology resembling that of the T. cruzi. RESULTS: The population examined was mostly from other states. From the 322 bugs examined on the microscope, 50% showed parasites with morphology compatible with T. cruzi. From the serology of 344 random samples of human blood, 1.2% was found positive, 6% showed inconclusive results, and 92.8% were negative. CONCLUSIONS: Monte Negro shows low prevalence of human infection by T. cruzi and none active vector transmission; however, preventive and surveying measures, which are not performed until now, shall be taken due to the abundance of vectors infected by trypanosomatidae.<\/jats:p>","DOI":"10.1590\/s0037-86822011000600010","type":"journal-article","created":{"date-parts":[[2012,1,7]],"date-time":"2012-01-07T02:04:25Z","timestamp":1325901865000},"page":"703-707","source":"Crossref","is-referenced-by-count":9,"title":["Study on Chagas disease occurrence in the municipality of Monte Negro, State of Rond\u00f4nia, Brazilian Amazon"],"prefix":"10.1590","volume":"44","author":[{"given":"Elaine Oliveira Costa de","family":"Carvalho","sequence":"first","affiliation":[{"name":"Funda\u00e7\u00e3o Universidade Federal de Rond\u00f4nia; Instituto Federal de Educa\u00e7\u00e3o, Ci\u00eancia e Tecnologia de Rond\u00f4nia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jo\u00e3o Aristeu da","family":"Rosa","sequence":"additional","affiliation":[{"name":"Faculdade de Ci\u00eancias Farmac\u00eauticas"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anderson Antonio de","family":"Carvalho","sequence":"additional","affiliation":[{"name":"Faculdade S\u00e3o Lucas"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hialli Cristine Oliveira","family":"Chaves","sequence":"additional","affiliation":[{"name":"Faculdade S\u00e3o Lucas"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Everton Almeida de","family":"Souza","sequence":"additional","affiliation":[{"name":"Faculdade S\u00e3o Lucas"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alejandro Luquetti","family":"Ostermayer","sequence":"additional","affiliation":[{"name":"Universidade Federal de Goi\u00e1s"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lu\u00eds Marcelo Aranha de","family":"Camargo","sequence":"additional","affiliation":[{"name":"Faculdade S\u00e3o Lucas; Universidade de S\u00e3o Paulo"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"530","reference":[{"key":"ref1","doi-asserted-by":"crossref","first-page":"269","DOI":"10.1590\/S0036-46652003000500006","article-title":"Chagas disease in a community in Southeast Brazil: I. 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