Navigation Links
Mosquitoes Can Become Desensitized to DEET
Date:2/20/2013

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 – HealthReviewCenter.com
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:
*Name:
*Comment:
*Email:
Related Image:
Mosquitoes Can Become Desensitized to DEET
(Date:6/25/2016)... ... 2016 , ... The temporary closing of Bruton Memorial Library on June 21 due to a ... new, often overlooked aspect of head lice: the parasite’s ability to live away from a ... occurrence, but a necessary one in the event that lice have simply gotten out of ...
(Date:6/25/2016)... ... June 25, 2016 , ... On Friday, June 10, Van ... Wellness at Work award to iHire in recognition of their exemplary accomplishments in worksite ... 7th annual Maryland Workplace Health & Wellness Symposium at the BWI Marriott in Linthicum ...
(Date:6/24/2016)... ... ... was in a crisis. Her son James, eight, was out of control. Prone to extreme ... “When something upset him, he couldn’t control his emotions,” remembers Marcy. “If there was ... other children and say he was going to kill them. If we were driving ...
(Date:6/24/2016)... Rhinebeck, NY (PRWEB) , ... June 24, 2016 , ... Topical BioMedics, Inc, makers of ... of companies that call for a minimum wage raise to $12 an hour by 2020 ... wage. This will restore the lost value of the minimum wage, assure the wage floor ...
(Date:6/24/2016)... , ... June 24, 2016 , ... ... actively feeding the Frederick area economy by obtaining investment capital for emerging technology ... past 2½ years that have already resulted in more than a million dollars ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... , June 24, 2016   Pulmatrix, Inc ., ... developing innovative inhaled drugs, announced today that it was ... Investments reconstituted its comprehensive set of U.S. and ... "This is an important milestone for Pulmatrix," said Chief ... shareholder awareness of our progress in developing drugs for ...
(Date:6/23/2016)... 23, 2016 Research and Markets has ... - Forecast to 2022" report to their offering. ... for the patients with kidney failure, it replaces the function ... the patient,s blood and thus the treatment helps to keep ... in balance. Increasing number of ESRD patients ...
(Date:6/23/2016)... June 23, 2016 Roche (SIX: RO, ROG; ... for its Elecsys BRAHMS PCT (procalcitonin) assay as a ... septic shock. With this clearance, Roche is the first ... integrated solution for sepsis risk assessment and management. ... infection and PCT levels in blood can aid clinicians ...
Breaking Medicine Technology: