The Super-spreading Landscape of Urban Dengue Fever
Urbanization shows unique risks for vector-borne disease.
Dengue Fever is one of the most concerning emerging infectious diseases of the early 21st century. The virus has been spreading with its ever-expanding host, the mosquito Aedes aegypti. For the last several years there have been naturally acquired cases of dengue fever in the United States and Europe, that are not connected to travel.
Aedes aegypti‘s preference for the urban environment distinguishes it from most mosquitoes. It prefers to lay it eggs in small urban pools of water – flower pots, old tires, car ruts, buckets – rather than natural forest pools. As day-light feeders, bed netting would not be useful against A. aegpyti. It has been known for some time that A. aegypti populations are driven by super-producing sites, pools of water that produce the majority of mosquitoes vs. pools that only produce a very few pupae.
It is known that dengue fever is…
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