Guest guest Posted September 18, 2006 Report Share Posted September 18, 2006 World Health Org. clears DDT spraying for malaria Fri Sep 15, 2006 12:59pm ET Deborah Zabarenko, Environment Correspondent WASHINGTON (Reuters) - DDT, the long-banned insecticide blamed for killing birds and other wildlife, is now approved for use indoors to fight malaria, the World Health Organization announced on Friday. " One of the best tools we have against malaria is indoor residual house spraying, " said Dr. Arata Kochi, director of the World Health Organization (WHO) malaria department. " Of the dozen pesticides WHO has approved as safe for house spraying, the most effective is DDT. " For about $5 per house, indoor spraying with DDT is a cost-effective response to malaria, which kills about a million people annually, most of them children under five. In parts of Africa and Asia where malaria-carrying mosquitoes spread the disease, 85 percent of home dwellers approached by health workers allow their houses to be sprayed, global health officials said at a news conference. DDT came into common use in the 1930s as an agricultural insecticide. It became notorious after biologist and ecologist Rachel Carson's 1962 book " Silent Spring " exposed how DDT entered the food chain, killing wildlife and threatening humans. In 1969, the National Cancer Institute announced findings that DDT could cause cancer, and a U.S. federal ban was imposed in 1972. Richard Tren, director of the group Africa Fighting Malaria, stressed the difference between agricultural DDT sprayed outdoors and the residual spraying meant to act like a giant mosquito net over individual houses. " The environmental impact associated with spraying insecticides -- whether it's DDT or other insecticides -- indoors is minimal, it's negligible ... This is as unrelated to 'Silent Spring' as anything, " Tren said. " The science is very clear that there are no harmful human effects. " As nightfall does not come at once, neither does oppression. In both instances, there's a twilight where everything remains seemingly unchanged, and it is in such twilight that we must be aware of change in the air, however slight, lest we become unwitting victims of the darkness. William O. Douglas Quote Link to comment Share on other sites More sharing options...
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