Occurrence of synanthropic triatomines (Hemiptera: Reduviidae) in the Federal District of Brazil
INTRODUCTION: Entomological surveillance of Chagas disease in the Federal District of Brazil (DF), has recorded the following triatomine species: Panstrongylus megistus, P. geniculatus, P. diasi, Rhodnius neglectus, Triatoma pseudomaculata, and T. sordida. We aimed to analyze the spatial and tempora...
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Sociedade Brasileira de Medicina Tropical (SBMT)
2012-02-01
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| Series: | Revista da Sociedade Brasileira de Medicina Tropical |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822012000100014&lng=en&tlng=en |
| _version_ | 1828340582417694720 |
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| author | Maicon Hitoshi Maeda Monique Britto Knox Rodrigo Gurgel-Gonçalves |
| author_facet | Maicon Hitoshi Maeda Monique Britto Knox Rodrigo Gurgel-Gonçalves |
| author_sort | Maicon Hitoshi Maeda |
| collection | DOAJ |
| description | INTRODUCTION: Entomological surveillance of Chagas disease in the Federal District of Brazil (DF), has recorded the following triatomine species: Panstrongylus megistus, P. geniculatus, P. diasi, Rhodnius neglectus, Triatoma pseudomaculata, and T. sordida. We aimed to analyze the spatial and temporal occurrence of triatomine species collected in DF, and their indices of natural infection with trypanosomes. METHODS: The Health State Secretariat of DF recorded triatomines between 2002 and 2010 in 20 administrative regions. This retrospective analysis considered the number of adults and nymphs of each species collected and infected in both intradomicile and peridomicile. RESULTS: A total of 754 triatomines were collected in 252 reported domiciles. Panstrongylus megistus was the most frequent species (65%), followed by T. pseudomaculata (14%). Of the 309 examined insects, only 3 (1%) specimens of P. megistus were infected with flagellates morphologically similar to Trypanosoma cruzi. The spatial occurrence indicated a higher diversity of triatomines and frequency of T. sordida in rural areas. Moreover, there was a predominance of P. megistus in urban areas. The number of records of P. megistus in the rainy season was two times higher than that during the dry season. The largest number of triatomines was collected in November. CONCLUSIONS: The presence of P. megistus specimens infected with trypanosomes in domiciles, shows the potential risk of human infection in DF. Thus, it is essential to continue entomological surveillance, intensifying it in the rainy season and in regions of greater occurrence. |
| first_indexed | 2024-04-13T22:58:15Z |
| format | Article |
| id | doaj.art-06a21a24f3e24951a14dc29ea15cab0c |
| institution | Directory Open Access Journal |
| issn | 1678-9849 |
| language | English |
| last_indexed | 2024-04-13T22:58:15Z |
| publishDate | 2012-02-01 |
| publisher | Sociedade Brasileira de Medicina Tropical (SBMT) |
| record_format | Article |
| series | Revista da Sociedade Brasileira de Medicina Tropical |
| spelling | doaj.art-06a21a24f3e24951a14dc29ea15cab0c2022-12-22T02:25:56ZengSociedade Brasileira de Medicina Tropical (SBMT)Revista da Sociedade Brasileira de Medicina Tropical1678-98492012-02-01451717610.1590/S0037-86822012000100014S0037-86822012000100014Occurrence of synanthropic triatomines (Hemiptera: Reduviidae) in the Federal District of BrazilMaicon Hitoshi Maeda0Monique Britto Knox1Rodrigo Gurgel-Gonçalves2Diretoria de Vigilância Ambiental do Distrito FederalDiretoria de Vigilância Ambiental do Distrito FederalDiretoria de Vigilância Ambiental do Distrito FederalINTRODUCTION: Entomological surveillance of Chagas disease in the Federal District of Brazil (DF), has recorded the following triatomine species: Panstrongylus megistus, P. geniculatus, P. diasi, Rhodnius neglectus, Triatoma pseudomaculata, and T. sordida. We aimed to analyze the spatial and temporal occurrence of triatomine species collected in DF, and their indices of natural infection with trypanosomes. METHODS: The Health State Secretariat of DF recorded triatomines between 2002 and 2010 in 20 administrative regions. This retrospective analysis considered the number of adults and nymphs of each species collected and infected in both intradomicile and peridomicile. RESULTS: A total of 754 triatomines were collected in 252 reported domiciles. Panstrongylus megistus was the most frequent species (65%), followed by T. pseudomaculata (14%). Of the 309 examined insects, only 3 (1%) specimens of P. megistus were infected with flagellates morphologically similar to Trypanosoma cruzi. The spatial occurrence indicated a higher diversity of triatomines and frequency of T. sordida in rural areas. Moreover, there was a predominance of P. megistus in urban areas. The number of records of P. megistus in the rainy season was two times higher than that during the dry season. The largest number of triatomines was collected in November. CONCLUSIONS: The presence of P. megistus specimens infected with trypanosomes in domiciles, shows the potential risk of human infection in DF. Thus, it is essential to continue entomological surveillance, intensifying it in the rainy season and in regions of greater occurrence.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822012000100014&lng=en&tlng=enControle da doença de ChagasVigilância entomológicaTriatomíneos sinatrópicosDistrito FederalBrasil |
| spellingShingle | Maicon Hitoshi Maeda Monique Britto Knox Rodrigo Gurgel-Gonçalves Occurrence of synanthropic triatomines (Hemiptera: Reduviidae) in the Federal District of Brazil Revista da Sociedade Brasileira de Medicina Tropical Controle da doença de Chagas Vigilância entomológica Triatomíneos sinatrópicos Distrito Federal Brasil |
| title | Occurrence of synanthropic triatomines (Hemiptera: Reduviidae) in the Federal District of Brazil |
| title_full | Occurrence of synanthropic triatomines (Hemiptera: Reduviidae) in the Federal District of Brazil |
| title_fullStr | Occurrence of synanthropic triatomines (Hemiptera: Reduviidae) in the Federal District of Brazil |
| title_full_unstemmed | Occurrence of synanthropic triatomines (Hemiptera: Reduviidae) in the Federal District of Brazil |
| title_short | Occurrence of synanthropic triatomines (Hemiptera: Reduviidae) in the Federal District of Brazil |
| title_sort | occurrence of synanthropic triatomines hemiptera reduviidae in the federal district of brazil |
| topic | Controle da doença de Chagas Vigilância entomológica Triatomíneos sinatrópicos Distrito Federal Brasil |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822012000100014&lng=en&tlng=en |
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