"A product called the OFF ClipOn repellent device could be an effective tool for preventing bites from the Aedes aegypti mosquito  the primary vector of Zika chikungunya dengue and yellow fever  according to an article in the Journal of Medical Entomology httpdx.doi.org.jmetjv. The OFF ClipOn repels mosquitoes by releasing a vapor form of insecticide through a batterypowered fan forming an insecticide cloud around the wearer of the device. In order to test the effectiveness of the device Christopher Bibbs and RuiDe Xue of the Anastasia Mosquito Control District in Florida studied how the device performed against hungry Aedes aegypti mosquitoes. The study was done outdoors in order to replicate realworld conditions. They found that the OFF ClipOn caused high mosquito mortality and knockdown rates up to . meters from the device enough to protect a single person wearing the device. The effectiveness of the device came as a pleasant surprise to the researchers. In vector control we see more often than not that tools available for consumers dont work for the intended purpose said Bibbs. Just look at all the bug zappers repellent bracelets sonic bug repellents and other zany creations that wax and wane in popularity. Skepticism is inherent to the trade. But it was nice for a change of pace that one of these devices could actually do some good.  The full article OFF Clipon Repellent Device With Metofluthrin Tested on Aedes aegypti Diptera Culicidae for Mortality at Different Time Intervals and Distances is available at httpdx.doi.org.jmetjv. The Journal of Medical Entomology is published by the Entomological Society of America the largest organization in the world serving the professional and scientific needs of entomologists and people in related disciplines. Founded in  ESA today has nearly  members affiliated with educational institutions health agencies private industry and government. Members are researchers teachers extension service personnel administrators marketing representatives research technicians consultants students and hobbyists. For more information visit http"