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Journal articles
Large genetic differentiation and low variation in vector competence for dengue and yellow fever viruses of Aedes albopictus from Brazil, the United States, and the Cayman Islands.
Abstract : We conducted a population genetic analysis of Aedes albopictus collected from 20 sites in Brazil, the United States (Florida, Georgia, and Illinois), and the Cayman Islands. Using isoenzyme analysis, we examined genetic diversity and patterns of gene flow. High genetic differentiation was found among Brazilian samples, and between them and North American samples. Regression analysis of genetic differentiation according to geographic distances indicated that Ae. albopictus samples from Florida were genetically isolated by distance. Infection rates with dengue and yellow fever viruses showed greater differences between two Brazilian samples than between the two North American samples or between a Brazilian sample and a North American sample. Introductions and establishments of new Ae. albopictus populations in the Americas are still in progress, shaping population genetic composition and potentially modifying both dengue and yellow fever transmission patterns.
Keywords :
West Indies/epidemiology
Yellow Fever/transmission
Yellow Fever/virology
United States/epidemiology
Insect Vectors/virology
Insect Vectors/genetics
Genetic Variation/genetics
Flavivirus/physiology
Female
Dengue Virus/physiology
Dengue/virology
Dengue/transmission
Aedes/genetics
Aedes/virology
Animals
Brazil/epidemiology
Cited literature [51 references]
https://hal-pasteur.archives-ouvertes.fr/pasteur-01713445
Contributor : Marie Demeslay Gougam <>
Submitted on : Tuesday, February 20, 2018 - 3:55:57 PM
Last modification on : Wednesday, May 20, 2020 - 4:40:05 PM
Long-term archiving on: : Monday, May 21, 2018 - 1:20:41 PM
Contributor : Marie Demeslay Gougam <>
Submitted on : Tuesday, February 20, 2018 - 3:55:57 PM
Last modification on : Wednesday, May 20, 2020 - 4:40:05 PM
Long-term archiving on: : Monday, May 21, 2018 - 1:20:41 PM
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