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What are insect repellents.?
According to Fradin, M. S. (1998), insect repellents are substances applied to skin, clothing, or other surfaces that discourage insects from landing or biting. Insect repellents work by masking the chemical cues that attract insects, making it harder for them to find and bite their host. Common insect repellents include DEET, picaridin, and oil of lemon eucalyptus.
Reference:
Fradin, M. S. (1998). Mosquitoes and mosquito repellents: A clinician's guide. Annals of Internal Medicine, 128(11), 931-940.