http://www.smh.com.au/world/dirty-sock-noses-into-tanzanian-malaria-combat-20110713-1he52.html

Dirty sock noses into Tanzanian malaria combat 
David Brown, Washington 
July 14, 2011 
IN GLOBAL public health, disease-fighting tools that are cheap, available and 
sustainable are the Holy Grail. It might be hard to top the one being tested in 
Tanzania to prevent malaria: smelly socks.

Experiments in three villages where people get about 350 bites a year from 
malaria-infected mosquitoes are using dirty socks to lure the insects into 
traps, where they become contaminated with chemical poisons and die.

''Who would have thought there was a life-saving technology working in your 
laundry basket?'' said Peter Singer, a physician who heads Grand Challenges 
Canada, a development agency of the Canadian government helping to fund the 
research.

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''Socks are more readily available, and you don't have to mix any chemicals,'' 
said Fredros Okumu, the Tanzanian entomologist leading the research. ''It is 
the sort of thing that could be set up in a cottage factory.''

The traps are square boxes that look a little like commercial beehives. Some 
will contain human-odour bait, which consists of simple chemicals that are 
exuded by people, especially from the legs and feet. Some will contain socks 
worn for a day by adults. The researchers will compare the number of mosquitoes 
caught with each method. A key question is where to place traps. They need to 
be close enough to dwellings to attract mosquitoes, but not so close that they 
will increase people's exposure to the disease-carrying insects.

WASHINGTON POST


Read more: 
http://www.smh.com.au/world/dirty-sock-noses-into-tanzanian-malaria-combat-20110713-1he52.html#ixzz1S1qPz1GU


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