Absence of domestic triatomine colonies in an area of the coastal region of Ecuador where Chagas disease is endemic
Mem. Inst. Oswaldo Cruz
; 105(5): 677-681, Aug. 2010. mapas, tab
Article
em En
| LILACS
| ID: lil-557229
Biblioteca responsável:
BR1.1
ABSTRACT
Rhodnius ecuadoriensis is considered the second most important vector of Chagas disease in Ecuador. It is distributed across six of the 24 provinces and occupies intradomiciliary, peridomiciliary and sylvatic habitats. This study was conducted in six communities within the coastal province of Guayas. Triatomine searches were conducted in domestic and peridomestic habitats and bird nests using manual searches, live-bait traps and sensor boxes. Synantrhopic mammals were captured in the domestic and peridomestic habitats. Household searches (n = 429) and randomly placed sensor boxes (n = 360) produced no live triatomine adults or nymphs. In contrast, eight nymphs were found in two out of six searched Campylorhynchus fasciatus (Troglodytidae) nests. Finally, Trypanosoma cruzi DNA was amplified from the blood of 10 percent of the 115 examined mammals. Environmental changes in land use (intensive rice farming), mosquito control interventions and lack of intradomestic adaptation are suggested among the possible reasons for the lack of domestic triatomine colonies.
Palavras-chave
Texto completo:
1
Bases de dados:
LILACS
Assunto principal:
Trypanosoma cruzi
/
Triatominae
/
Doença de Chagas
/
Doenças Endêmicas
/
Insetos Vetores
Limite:
Animals
País/Região como assunto:
America do sul
/
Ecuador
Idioma:
En
Revista:
Mem. Inst. Oswaldo Cruz
Assunto da revista:
MEDICINA TROPICAL
/
PARASITOLOGIA
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
Equador
/
Estados Unidos