From left: Emmanuel Kwame lost his sight to river blindness as a young man in Ghana; a bed net keeps mosquitoes away from a mother and child in a Somalian hospital; extracting a guinea worm from an infected person.
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By hanging a caged chicken near mosquito traps in bedrooms in three Ethiopian villages, researchers hoped to learn how the insects react to the scent of a fowl.
Kassahun Jaleta/Courtesy of Rickard Ignell
A common house mosquito (Culex pipiens) is about to sink her six-weaponed proboscis into a human arm. This type transmits West Nile virus by biting infected birds, then biting humans.
In the 1940s, planes demonstrate DDT spraying at Congressional Airport, outside of Washington, D.C. They were part of a fleet headed to Greece to target mosquito breeding areas.
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