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18 December 2012 09:24
Scientists have claimed there is no hard evidence backing claims ultrasound can repel mosquitoes
Scientists have claimed there is no evidence to support a Brazilian radio station's campaign suggesting mosquitoes can be repelled by ultrasound. Band FM's campaign outlined how as well as broadcasting at their normal frequency, it would also emit a high-frequency 15kHz tone behind the music. This frequency, while being undetectable to human ears, was claimed to deter mosquitoes. The station said all listeners had to do was carry a radio around with them to avoid bites.
The radio campaign formed part of a wider initiative, which won the radio category at the Cannes Lions in June. But scientists have reported there is no solid data to back the campaign's claims, with a review into the subject two years ago stating ultrasound has "no effect on preventing mosquito bites... and should not be recommended or used".
With this in mind people have been reminded that the best way to protect against mosquitoes is to use creams, sprays, coils and plug-ins. It could be important for tourists travelling with medical conditions to make sure they get pre-existing medical travel insurance to cover problems such as bites when abroad.
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