Autor(es): Bennett, K. E.; Olson, K. E.; Munoz, M. D.; Fernandez-Salas, I.; Farfan-Ale, J. A.; Higgs, S.; Black, W. C.; Beaty, B. J.

Resumo: Aedes aegypti from 24 collections in Mexico and the United States were challenged orally with dengue 2 virus JAM1409 (DEN-2 JAM1409). The vector competence (VC) of the populations ranged from 24% to 83%. Mosquito populations from the Yucatan exhibited greater VC than those from other areas of Mexico. The presence or absence of a midgut infection barrier (MIB) and a midgut escape barrier (MEB) was determined for mosquitoes in each population. The percentage of mosquitoes exhibiting an MIB ranged from 14% to 59%, and those exhibiting an MEB ranged from 4% to 43% in the collections. The MIB and MEB were not completely independent as determined by regression analysis. Midgut infection rates were dose dependent.

Palavras-Chave: Yellow fever virus; Oral infection; Susceptibility; Strains; Genetics

Imprenta: American Journal of Tropical Medicine and Hygiene, v. 67, n. 1, p. 85-92, 2002

Descritores: Aedes aegypti - Public health

Data de publicação: 2002