Long-lasting, insecticide-treated mosquito nets should be distributed free, rapidly and widely in malaria-endemic areas, World Health Organization officials said here Thursday, setting new guidelines for fighting the mosquito-borne disease around the globe.
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The WHO announcement was paired with what Kochi called “impressive” findings by Kenyan health authorities that widespread, free distribution of mosquito nets can effectively save children’s lives.

After several years of using a combination of free distribution and sales, the Kenyan government last year conducted a massive, almost military-style campaign to distribute without charge 3.4 million insecticide-treated mosquito nets over three days in 46 malaria-endemic districts across the country.

Among a monitored group of 3,500 children in four of those districts, the number sleeping under the nets increased nearly tenfold from 2004 to 2006, WHO said, citing Kenyan government figures. The result was 44 percent fewer deaths than among children not sleeping under nets. Insecticide-treated mosquito nets kill mosquitoes on contact. If enough nets are distributed and used, they can have a kind of collective impact of eradicating mosquitoes in a given area.