Aedes aegypti (Diptera: Culicidae) Longevity and Differential Emergence of Dengue Fever in Two Cities in Sonora, Mexico

Dengue virus, primarily transmitted by the Aedes aegypti (L.) mosquito, has rapidly expanded in geographic extent over the past several decades. In some areas, however, dengue fever has not emerged despite established Ae. aegypti populations. The reasons for this are unclear and have sometimes been...

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Bibliographic Details
Published inJournal of medical entomology Vol. 54; no. 1; pp. 204 - 211
Main Authors Ernst, Kacey C, Walker, Kathleen R, Reyes-Castro, Pablo, Joy, Teresa K, Castro-Luque, A Lucia, Diaz-Caravantes, Rolando E, Gameros, Mercedes, Haenchen, Steven, Hayden, Mary H, Monaghan, Andrew, Jeffrey-Guttierez, Eileen, Carrière, Yves, Riehle, Michael R
Format Journal Article
LanguageEnglish
Published England Oxford University Press 01.01.2017
Subjects
Aedes - growth & development
Aedes - physiology
Aedes - virology
Animals
Cities
Dengue - transmission
Dengue - virology
Dengue Virus - isolation & purification
Female
Humans
Insect Vectors - growth & development
Insect Vectors - physiology
Insect Vectors - virology
Larva - growth & development
Larva - physiology
Larva - virology
Longevity
Mexico
Population Density
Population Dynamics
Pupa - growth & development
Pupa - physiology
Pupa - virology
Seasons
Vector/Pathogen/Host Interaction, Transmission
Mexico
longevity
Aedes aegypti
dengue
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Summary:Dengue virus, primarily transmitted by the Aedes aegypti (L.) mosquito, has rapidly expanded in geographic extent over the past several decades. In some areas, however, dengue fever has not emerged despite established Ae. aegypti populations. The reasons for this are unclear and have sometimes been attributed to socio-economic differences. In 2013 we compared Ae. aegypti adult density and population age structure between two cities in Sonora, Mexico: Hermosillo, which has regular seasonal dengue virus transmission, and Nogales, which has minimal transmission. Larval and pupal abundance was greater in Nogales, and adult density was only higher in Hermosillo during September. Population age structure, however, was consistently older in Hermosillo. This difference in longevity may have been one factor that limited dengue virus transmission in Nogales in 2013, as a smaller proportion of Ae. aegypti females survived past the extrinsic incubation period.
Bibliography:Authors contributed equally to the development of this manuscript.
ISSN:0022-2585
1938-2928
DOI:10.1093/jme/tjw141