Word: ddt
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Dates: during 1940-1949
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Along the malarial marshes and through the tropical lowland jungle ride Venezuela's green-uniformed soldiers of health. From their gaudy yellow trucks they dismount at the doorways of palm-thatched huts to spray walls and dark corners with DDT-guns. In two years of spraying, the malaria fighters have cleared the mosquito from 200,000 houses and all but wiped out malaria in one-third of the nation...
...campaign got started almost by chance. In the spring of 1945, Venezuela's chief malaria expert, young Arnoldo Gabaldon, was in Washington for a Pan-American health conference. At lunch one day, Dr. James Stevens (now dean of the Harvard School of Public Health) told him what DDT was doing for the Army in the southwest Pacific. Gabaldon was "terribly excited...
...care," says Gabaldón. "They don't even care if you treat them." As a Rockefeller Foundation fellow in protozoology, Gabaldón had learned that the chronic malarial "lose even the desire to procreate." Gabaldón decided to go all out for DDT...
...Orlando, Fla., after two years of experimenting and selective breeding, the Department of Agriculture's Bureau of Entomology and Plant Quarantine produced a sturdy strain of houseflies that could survive doses of DDT big enough to scare a beetle. Flies of the 35th generation were as robust as ever after absorbing twice the amount of DDT it takes to kill a normal fly. A fit few were still buzzing after a triple dose. While the bureau saw no danger of a race of superflies, there was still a possibility that such a race might evolve. Lately the bureau...
...Call You Sweetheart. Author St. John traveled through Titoland with a "change of clothes ... a Boy Scout knife, six cans of DDT, a pencil sharpener, and a considerable quantity of paper." He also took along an interpreter-a Russian-born American girl whose "small, vibrant figure" quivered with eagerness "to answer . . . the riddles of the New Yugoslavia...