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To the Editor.
—In a recent edition of the Archives (129:395, 1972) a short article about Venezuelan equine encephalomyelitis (VEE) appeared. It is deadly in horses but mild in man, and there seems to be a vaccine available against it. Twin-engine air force planes, however, were used to blanket more than 2.5 million acres in Texas and Louisiana with insecticide.I wonder what the ecological results of spraying 2.5 million acres will be. It was not stated what kind of insecticide was used. Hopefully it was not DDT. But even if it was not, the effects upon the ecology and perhaps upon our children and grandchildren should be considered. According to the article, "if the virus begins to spread again," the US Department of Agriculture declares, "we will tighten and extend the quarantine regulations and possibly resume spraying to control the mosquitos that are the chief carrier of VEE."I
Koloff WJ. INSECTICIDE SPRAY. Arch Intern Med. 1972;129(5):834. doi:10.1001/archinte.1972.00320050158018