image of Origin of a High-Latitude Population of Aedes aegypti in Washington, DC
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645


An overwintering population of has been documented in the Capitol Hill neighborhood of Washington, DC, since 2011. Mitochondrial cytochrome oxidase I () sequence data presented in a previous study traced the origin to the New World. Here, we use microsatellite and SNP chip data along with more mitochondrial DNA (mtDNA) sequences on Washington samples and samples from potential sources to further narrow the origin of this population. Genetically, Washington are closest to populations in Florida, meaning this is the most likely source. Florida experienced the first mosquito-borne transmission of dengue in the United States after decades of absence of this disease, as well as local transmission of chikungunya and Zika in recent years. This indicates that the Capitol Hill, Washington, DC population of is capable of transmitting viruses such as dengue, chikungunya, and Zika in modern US city environments.


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  • Published online : 18 Dec 2017
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