CDC / SCIENCE PHOTO LIBRARY CDC / SCIENCE PHOTO LIBRARY
Malaria control operations. Worker creating holes in which to place dynamite to remove a tree stump as part of malaria control operations Virginia, USA, in the 1920s. On the tree stump are sticks of dynamite and a detonator. The stump is being removed to allow a drainage ditch to be dug to remove the standing water in which mosquito larvae breed. Mosquitoes are the vector for malaria transmission. Preventing mosquitoes from breeding is one of the ways used to control the spread of malaria.
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