Navigation Links
Mosquitoes Can Become Desensitized to DEET

WEDNESDAY, Feb. 20 (HealthDay News) -- Mosquitoes can become desensitized to the insect repellent DEET, according to a new study.

Although most bugs are strongly deterred by DEET, the researchers had previously found that some mosquitoes and flies carry a genetic change in the odor receptors on their antennae that allows them to ignore the smell.

In their new study on a particular type of mosquito, the researchers found that a short-term change rather than a genetic adaptation makes them immune to the repellent's smell for at least a few hours after exposure.

The findings were published Feb. 20 in the journal PLoS ONE.

"Our study shows that the effects of this exposure last up to three hours. We will be doing further research to determine how long the effect lasts," James Logan, of the London School of Hygiene & Tropical Medicine, said in a journal news release.

The study involved Aedes aegypti mosquitoes, which transmit dengue fever and bite in the daytime. The researchers found that even brief exposure to DEET was enough to desensitize the mosquitoes to the repellent's smell.

Up to three hours after being exposed to DEET, the mosquitoes were not deterred by the product and were still attracted to heat and human skin.

"We think that the mosquitoes are habituating to the repellent, similar to a phenomenon seen with the human sense of smell. However, the human olfactory system is very different from a mosquito's, so the mechanism involved in this case is likely to be very different," Logan said. "This doesn't mean that we should stop using repellents -- on the contrary, DEET is a very good repellent and is still recommended for use in high-risk areas. However, we are keeping a close eye on how mosquitoes can overcome the repellent and ways in which we can combat this."

More information

The U.S. Environmental Protection Agency has more about DEET.

-- Mary Elizabeth Dallas

SOURCE: PLoS ONE, news release, Feb. 20, 2013

Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. UCI researchers create mosquitoes incapable of transmitting malaria
2. People With Disabilities More Likely to Become Victims of Violence
3. Aspen Becomes a Premier CHIME Foundation Member and Supports Vision to Shape the Future of Healthcare through IT Leadership
4. American Diabetes Wholesale Becomes A Major Sponsor For ‘Downhill For Diabetes’ Fund Raising Event
5. Could A Grill, Skillet or Deep Fryer Become the New Valentine's Day Gift?
6. Reiki Master
7. How “Usui Reiki Healing Master” Helps People Become a Reiki Master –
8. College Hunks Moving West Palm Beach Becomes Official Susan G. Komen Race for the Cure Logistic’s Sponsor
9. Phuket Becomes a Hot Destination Thanks to New Deals Offered By Delta Travel Center in Valencia
10. Vaccines Might Become Another Way to Fight Cancer
11. ICM Trading, iTrade Capital Markets Invite Investors To Become White Label Partners
Post Your Comments:
Related Image:
Mosquitoes Can Become Desensitized to DEET
(Date:10/13/2015)... ... October 13, 2015 , ... ... the United States, today announced the release of its limited edition holiday seasonal ... Cocktail Agua Fresca. All feature the unique flavor combinations and delicious taste Califia ...
(Date:10/13/2015)... , ... October 13, 2015 , ... ProText Kinetic Panel ... . With ProText Kinetic Panel, users can create energetic text animations in any layout ... into the Final Cut Pro X timeline and stylize the text. With intuitive on-screen ...
(Date:10/13/2015)... , ... October 13, 2015 , ... In an age ... costs were 36 percent lower per square foot than in 2009. The Williamsport Regional ... of heating and cooling has decreased by eight percent. , According to Facilities ...
(Date:10/13/2015)... York, NY (PRWEB) , ... October 13, 2015 , ... ... The app helps individuals find others to train with, participate in local fitness ... App Store and Google Play. , “As high medical costs drive us to get ...
(Date:10/13/2015)... ... October 13, 2015 , ... Altec Products, Inc., the ... of Synergy 2015. The annual WennSoft KEY2ACT user conference will take place from ... unite customers, partners, WennSoft team members and sponsors to facilitate the sharing of ...
Breaking Medicine News(10 mins):
(Date:10/13/2015)... , Oct. 13, 2015 WuXi PharmaTech ... and technology platform company serving the pharmaceutical, biotechnology, ... has launched a mobile version of OncoWuXi, the ... to access oncology models and data on the ... and at any time to identify relevant tumor ...
(Date:10/13/2015)... 13, 2015 Health Gorilla ( ) today ... – a secure platform for clinical data and communications ... about and manage healthcare in the US. The launch follows ... a combined total of $4.4M raised to date, with ... True Ventures , Harris Barton , Orfin Ventures ...
(Date:10/13/2015)... DUBLIN , Oct. 8, 2015 Research ... of the "World Anti-counterfeit Pharmaceuticals and Cosmetics Packaging ... report to their offering. --> ... packaging market to grow at a CAGR of 15.7% ... The hologram authentication technology segment accounted for about ...
Breaking Medicine Technology: