WASHINGTON -- New mosquito repellents on the horizon could last more than four times longer than the best now available. Researchers for the Pentagon said they've tested chemicals on clothing that kept mosquitoes away for up to 73 days.
Currently, the best repellent on the market -- known as DEET -- averages 17.5 days. One scientist said some of the new chemicals are "just phenomenal." The researchers focused on what the most powerful mosquito repellents have in common chemically. The search was narrowed to seven possible repellents which will be tested this summer for safety.
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It's expected to be a few years before any are available commercially.
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