Technicians in a Jeep parked beside a lake spray the surface of the lake with oil an early method for controlling mosquito larvae by suffocating them...
{"Image ImageDescription": "Technicians in a Jeep parked beside a lake spray the surface of the lake with oil, an early method for controlling mosquito larvae by suffocating them in the water, 1958. Image courtesy CDC. (Photo by Smith Collection/Gado/Getty Images)"}