Rapid urban evolution of the dengue mosquito in West African cities
Bosompem, M. A.; Fifer, J. E.; Nelson, D.; Boateng, J. K.; Sackitey, D.; Oware, S.; Ouedraogo, W. M.; Akorli, J. E.; Badolo, A.; Rose, N.
Show abstract
Aedes aegypti is an exceptionally effective global vector of human disease because of its strong specialization on human hosts and habitats. However, in its native range in Africa, many populations never specialized on humans and retained an ancestral generalist ecology. Now, in the rapidly growing cities of Kumasi, Ghana and Ouagadougou, Burkina Faso, we directly document genomic and behavioral evidence of a sudden shift towards greater specialization on humans over just five years. These changes are likely to enhance the ability of these urban mosquito populations to serve as effective vectors of human disease and may have played a role in unprecedented recent outbreaks of dengue fever in West African cities.
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