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  • Title: Effect of skin abrasions on the efficacy of the repellent deet against Aedes aegypti.
    Author: Rueda LM, Rutledge LC, Gupta RK.
    Journal: J Am Mosq Control Assoc; 1998 Jun; 14(2):178-82. PubMed ID: 9673919.
    Abstract:
    Abrasion of repellent-treated human skin affected the efficacy of a sustained-release insect repellent containing N,N-diethyl-3-methylbenzamide (deet) against bites of Aedes aegypti. Skin treated with repellent when abraded up to 30 times showed significantly lower protection than unabraded skin against mosquito bites for 10 h. The mean value of the kinetic coefficient of friction during skin abrasion by clothing (battle dress uniform fabric) for repellent-treated skin (0.159 +/- 0.003) was significantly higher than untreated skin (0.122 +/- 0.005). Repellent-treated skin appeared stickier than the untreated skin. An increase in the number of skin abrasions by clothing resulted in a reduced duration of protection against mosquito bites.
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