A laboratory study found that yellow fever mosquitoes can learn to associate the insect repellent DEET with food rewards, potentially explaining why the chemical's effectiveness may diminish over time. Researchers trained mosquitoes to approach DEET-treated hands after pairing the odor with blood meals, suggesting the repellent's protection may weaken hours after application.
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A laboratory study found that yellow fever mosquitoes can learn to associate the insect repellent DEET with food rewards, potentially explaining why the chemical's effectiveness may diminish over time. Researchers trained mosquitoes to approach DEET-treated hands after pairing the odor with blood meals, suggesting the repellent's protection may weaken hours after application.
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