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

被引：201

作者：

Bennett, KE ^{[1
]}

Olson, KE

Muñoz, MD

Fernandez-Salas, I

Farfan-Ale, JA

Higgs, S

Black, WC

Beaty, BJ

机构：

[1] Colorado State Univ, Dept Microbiol, Arthropod Borne Infect Dis Labs, Ft Collins, CO 80523 USA

[2] Inst Politecn Nacl, Dept Genet & Mol Biol, Mexico City, DF, Mexico

[3] Univ Autonoma Nuevo Leon, Lab Entomol Med, Fac Ciencias Biol, Monterrey, Mexico

[4] Univ Autonoma Yucatan, Ctr Invest Reg, Merida, Mexico

[5] Univ Texas, Med Branch, Dept Pathol, Galveston, TX 77550 USA

来源：

AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE | 2002年 / 67卷 / 01期

关键词：

D O I：

10.4269/ajtmh.2002.67.85

中图分类号：

R1 [预防医学、卫生学];

学科分类号：

1004 ; 120402 ;

摘要：

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.

引用

页码：85 / 92

页数：8

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