A product called the OFF! Clip-On repellent device could be an effective tool for preventing bites from mosquitoes that cause Zika, chikungunya, dengue and yellow fever.
The OFF! Clip-On repels mosquitoes by releasing a vapor form of insecticide through a battery-powered fan, forming an insecticide "cloud" around the wearer of the device. In order to test the effectiveness of the device, Christopher Bibbs and Rui-De 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 real-world conditions.
‘Clip-On repellent releases a vapor forming an insecticide "cloud", thereby protecting the wearer from mosquito bites.’
AdvertisementThey found that the OFF! Clip-On caused high mosquito mortality and knockdown rates up to 0.3 meters from the device, enough to protect a single person wearing the device.
"In vector control, we see more often than not that tools available for consumers don't 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."
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