Epidemiologic studies of chagas' disease in the urban zone of Teresina. State of Piauí, northeastern Brazil
The triatomine species Rhodnius nasutus and Triatoma pseudomaculata were captured on palm trees Orbignya martiana "babaçu ", in the urban zone of Teresina. This kind of palm tree is largely distributed in Piauí State. The predominant species was R. nasutus; the young in stars predominated....
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Medicina Tropical (SBMT)
1984-12-01
|
| Series: | Revista da Sociedade Brasileira de Medicina Tropical |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86821984000400006&lng=en&tlng=en |
| _version_ | 1811231683173679104 |
|---|---|
| author | Dalva N. da C. Bento Ana Z. C. L Branco Marise R. Freitas Artur da S. Pinto |
| author_facet | Dalva N. da C. Bento Ana Z. C. L Branco Marise R. Freitas Artur da S. Pinto |
| author_sort | Dalva N. da C. Bento |
| collection | DOAJ |
| description | The triatomine species Rhodnius nasutus and Triatoma pseudomaculata were captured on palm trees Orbignya martiana "babaçu ", in the urban zone of Teresina. This kind of palm tree is largely distributed in Piauí State. The predominant species was R. nasutus; the young in stars predominated. The infestation index of palm trees and the infection index of triatomines by flagellates were 96.0 ana 29.1%, respectively. Marsupiais, bats and a rodent were captured in palm trees. The flagellates found in both triatomines ana marsupiais were morphologically and biologically indistinguishable from Trypanosoma cruzi. Forty seven percent (481/1,025) of triatomines were found concentrated in six palm trees where marsupiais circulated. Of the total of 1,025 triatomines 230 (22%) were infected by flagellates and 53.0% (123/230) of these infected triatomines were present in the same six palm trees. No evidence of triatomine domiciliation or human transmission was observed in the houses in the vicinity of palm trees. The results suggest that marsupiais play an important role in the life-cycle of T. cruzi in this region. The natural focus of Chagas' disease, demonstrated in the present study could represent a potential epidemiological threat. |
| first_indexed | 2024-04-12T10:48:58Z |
| format | Article |
| id | doaj.art-6cc1dd10cbf84129b9f8c37d5b3c761a |
| institution | Directory Open Access Journal |
| issn | 1678-9849 |
| language | English |
| last_indexed | 2024-04-12T10:48:58Z |
| publishDate | 1984-12-01 |
| publisher | Sociedade Brasileira de Medicina Tropical (SBMT) |
| record_format | Article |
| series | Revista da Sociedade Brasileira de Medicina Tropical |
| spelling | doaj.art-6cc1dd10cbf84129b9f8c37d5b3c761a2022-12-22T03:36:19ZengSociedade Brasileira de Medicina Tropical (SBMT)Revista da Sociedade Brasileira de Medicina Tropical1678-98491984-12-0117419920310.1590/S0037-86821984000400006S0037-86821984000400006Epidemiologic studies of chagas' disease in the urban zone of Teresina. State of Piauí, northeastern BrazilDalva N. da C. Bento0Ana Z. C. L Branco1Marise R. Freitas2Artur da S. Pinto3Universidade Federal do PiauíUniversidade Federal do PiauíUniversidade Federal do PiauíUniversidade Federal do PiauíThe triatomine species Rhodnius nasutus and Triatoma pseudomaculata were captured on palm trees Orbignya martiana "babaçu ", in the urban zone of Teresina. This kind of palm tree is largely distributed in Piauí State. The predominant species was R. nasutus; the young in stars predominated. The infestation index of palm trees and the infection index of triatomines by flagellates were 96.0 ana 29.1%, respectively. Marsupiais, bats and a rodent were captured in palm trees. The flagellates found in both triatomines ana marsupiais were morphologically and biologically indistinguishable from Trypanosoma cruzi. Forty seven percent (481/1,025) of triatomines were found concentrated in six palm trees where marsupiais circulated. Of the total of 1,025 triatomines 230 (22%) were infected by flagellates and 53.0% (123/230) of these infected triatomines were present in the same six palm trees. No evidence of triatomine domiciliation or human transmission was observed in the houses in the vicinity of palm trees. The results suggest that marsupiais play an important role in the life-cycle of T. cruzi in this region. The natural focus of Chagas' disease, demonstrated in the present study could represent a potential epidemiological threat.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86821984000400006&lng=en&tlng=enDoença de ChagasEstudo epidemiológicoVetoresReservatóriosTriatomíneos Orbignya martiana |
| spellingShingle | Dalva N. da C. Bento Ana Z. C. L Branco Marise R. Freitas Artur da S. Pinto Epidemiologic studies of chagas' disease in the urban zone of Teresina. State of Piauí, northeastern Brazil Revista da Sociedade Brasileira de Medicina Tropical Doença de Chagas Estudo epidemiológico Vetores Reservatórios Triatomíneos Orbignya martiana |
| title | Epidemiologic studies of chagas' disease in the urban zone of Teresina. State of Piauí, northeastern Brazil |
| title_full | Epidemiologic studies of chagas' disease in the urban zone of Teresina. State of Piauí, northeastern Brazil |
| title_fullStr | Epidemiologic studies of chagas' disease in the urban zone of Teresina. State of Piauí, northeastern Brazil |
| title_full_unstemmed | Epidemiologic studies of chagas' disease in the urban zone of Teresina. State of Piauí, northeastern Brazil |
| title_short | Epidemiologic studies of chagas' disease in the urban zone of Teresina. State of Piauí, northeastern Brazil |
| title_sort | epidemiologic studies of chagas disease in the urban zone of teresina state of piaui northeastern brazil |
| topic | Doença de Chagas Estudo epidemiológico Vetores Reservatórios Triatomíneos Orbignya martiana |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86821984000400006&lng=en&tlng=en |
| work_keys_str_mv | AT dalvandacbento epidemiologicstudiesofchagasdiseaseintheurbanzoneofteresinastateofpiauinortheasternbrazil AT anazclbranco epidemiologicstudiesofchagasdiseaseintheurbanzoneofteresinastateofpiauinortheasternbrazil AT mariserfreitas epidemiologicstudiesofchagasdiseaseintheurbanzoneofteresinastateofpiauinortheasternbrazil AT arturdaspinto epidemiologicstudiesofchagasdiseaseintheurbanzoneofteresinastateofpiauinortheasternbrazil |