Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2002 Jul;67(1):85-92.
doi: 10.4269/ajtmh.2002.67.85.

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

Kristine E Bennett  1 , Ken E Olson, Maria de Lourdes Muñoz, Ildefonso Fernandez-Salas, Jose A Farfan-Ale, Steve Higgs, William C Black 4th, Barry J Beaty
Affiliations
Free article

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

Kristine E Bennett et al. Am J Trop Med Hyg. 2002 Jul.
Free article

Abstract

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.

PubMed Disclaimer

Publication types

LinkOut - more resources