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NEW YORK — Scientists have made a promising advance for controlling dengue fever, a tropical disease . spread by mosquito bites. They've rapidly replaced mosquitoes in the wild with skeeters that don't spread the dengue virus.
More than 50 million people a year get the dengue virus from being bitten by infected mosquitoes in tropical and subtropical areas, including Southeast Asia. It can cause debilitating high fever, severe headaches, and pain in the muscles and joints, and lead to a potentially fatal complication. There's no vaccine or specific treatment.
Some scientists have been trying to fight dengue by limiting mosquito populations. That was the goal in releasing genetically modified mosquitoes last year at sites in Malaysia and the Cayman Islands.
Australian scientists took a different tack, they report in Thursday's issue of the journal Nature
By MALCOLM RITTER 
