Mosquito season is starting in the United States, bringing the risk of bug bites that can transmit parasites and viruses like malaria, dengue, West Nile, and Zika. To protect against mosquito bites, repellents with DEET, IR3535, picaridin, or oil of lemon eucalyptus are recommended. Other preventive measures include wearing long clothes, avoiding outdoor activities at dawn and dusk, and eliminating standing water. Insecticides are tested at the Centers for Disease Control and Prevention lab in Colorado, where researchers assess their effectiveness on mosquitoes. Some mosquitoes are developing resistance to certain insecticides, requiring ongoing monitoring and testing.
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What to look for in mosquito repellents
