Variation in vector competence for dengue 2 virus among 24 collections of Aedes aegypti from Mexico and the United States.

Bennett, Kristine E. y Olson, Ken E. y Muñoz, María de Lourdes y Fernández Salas, Ildefonso y Farfán Ale, José Arturo y Higgs, Steve y Black, William C. y Beaty, Barry J. (2002) Variation in vector competence for dengue 2 virus among 24 collections of Aedes aegypti from Mexico and the United States. American journal of tropical medicine and hygiene, 67 (1). pp. 85-92. ISSN 0002-9637

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Resumen

Aedes aegypti from 24 collections in Mexico and the United States were challenged orally with dengue 2 virus JAM1409 (DEN-2-JAM 1409). 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 of absence of a midgut infection barrier (MIB) and a midgut escape barrier(MEB) was determined for mosquitoes in each 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.

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