home
RSS
Study: Malaria-infected mosquitoes more attracted to human odor
The mosquito of the Anopheles gambiae type transmits malaria.
May 15th, 2013
05:02 PM ET

Study: Malaria-infected mosquitoes more attracted to human odor

We think of malaria as a disease that infects more than 200 million people a year, with transmission happening through mosquito bites.

But it's not entirely the fault of the mosquitoes. Scientists are exploring how the malaria parasite itself may actually change a mosquito's behavior to make it more attracted to humans, as if controlling its mind so that the bug goes after us.

A new study in the journal PLOS One demonstrates, for the first time, that mosquitoes infected with malaria are more attracted to human odor than uninfected mosquitoes. This is only a proof of concept, however; more research needs to be done to confirm.

“What we've shown is malaria parasites can manipulate the mosquito's behavior to make it sense our body odor much more easily, and that means they’re much more likely to find us," said Dr. James Logan of the Department of Disease Control at the London School of Hygiene & Tropical Medicine, senior author of the study.

Methods

Researchers used 59 malaria-infected mosquitoes and 97 mosquitoes that were not infected. (Only female mosquitoes transmit the parasite.)

A male volunteer wore nylon socks for 20 hours to collect human odor on the material. Scientists then examined how mosquitoes responded to a human-smelling sock compared with a standard nylon sock without a human odor.

Results

Both groups of mosquitoes were generally uninterested in the sock without the human odor. But mosquitoes with malaria paid a lot more attention to the human-smelling sock, landing on it and probing it more than the non-infected mosquitoes.

This represents the first time female mosquitoes have exhibited a behavior change as a result of malaria in response to human odor, the study authors wrote.

Implications

Logan and colleagues have won a research grant to study this further over three years. In the next step, they will take body smell samples from 30 people, "mixing it all up so we’ve got an overall coverage of different types of human odor," he said. Scientists already know that individuals can differ in their attractiveness to mosquitoes.

Eventually, this may lead scientists to identify chemicals that can be used as lures for traps to target malaria-infected mosquitoes. Currently, the traps catch all kinds of mosquitoes, regardless of their malaria status. It would be more efficient, and better for monitoring purposes, to trap only those that have the parasite. This method might even be used to bring the population down.

There are some other intriguing examples in nature of how parasites control the minds of their hosts. A type of fungus, for example, can take over and eventually kill the ants it infects.

But these "zombie ants" don't have the tremendous human impact of malaria-carrying mosquitoes, which caused an estimated 660,000 deaths in 2010.

"The importance is that we showed in a biologically relevant system of a mosquito, a parasite and a blood host, that the parasite can manipulate the behavior of a mosquito," said lead study author Renate Smallegange, who now works at Wageningen Academic Publishers.

More: New discovery may be step toward ending malaria


soundoff (414 Responses)
  1. diesel truck repair near my location

    http://www.boolsite.net/pub_click.php?empl=Sky&camp=Liens+sponsorisE9s&band=72&url=http3A2F2Fcommercialrepairshop.com

    May 5, 2021 at 12:33 | Report abuse | Reply
  2. att near me

    Greetings! Very helpful advice within this post! It's the little changes which will make the most important changes. Thanks a lot for sharing!

    https://ovatu.com/e/c?url=http://reviewnearme.com

    May 5, 2021 at 19:31 | Report abuse | Reply
  3. sprinter van conversion

    I blog quite often and I really thank you for your information. The article has really peaked my interest. I am going to bookmark your site and keep checking for new details about once a week. I opted in for your Feed too.

    http://www.grillofamily.org/__media__/js/netsoltrademark.php?d=www.fleetautorepairshop.com

    May 5, 2021 at 23:07 | Report abuse | Reply
  4. RV Shower Los Angeles

    I was very pleased to discover this great site. I need to to thank you for ones time for this particularly wonderful read!! I definitely really liked every part of it and I have you book-marked to see new stuff in your blog.

    http://www.setifersystems.com/__media__/js/netsoltrademark.php?d=www.ocrvcenter.biz

    May 6, 2021 at 03:16 | Report abuse | Reply
  5. freightliner box truck

    http://www.turklub-kolomna.ru/goto/https://ocrvfleetservices.com

    May 6, 2021 at 05:06 | Report abuse | Reply
  6. covid 19 testing near me

    https://www.massey.co.uk/asp/click.asp?https://www.nearmyspot.com

    May 6, 2021 at 13:13 | Report abuse | Reply
  7. volunteer opportunities near me

    Spot on with this write-up, I seriously believe this web site needs much more attention. I’ll probably be returning to read through more, thanks for the info!

    http://profiles.responsemail.co.uk/linktrack.php?pf=maril&l=32&cid=240&esid=5737404&url=http://www.oc-rv.com

    May 6, 2021 at 17:11 | Report abuse | Reply
  8. prostar collision center

    https://thewikihow.com/video_oitqFu0PqvY

    May 6, 2021 at 17:21 | Report abuse | Reply
  9. Forklift Parts Near Me

    https://iztube.ru/video/YyIKCNChmJ8

    May 6, 2021 at 17:49 | Report abuse | Reply
  10. Beers Company

    Good information. Lucky me I discovered your blog by chance (stumbleupon). I've saved it for later!

    https://map.google.fm/url?sa=i&rct=j&url=https3A2F2Fcraftbrewersofboise.com&sa=D&sntz=1&usg=AFQjCNGaY_nlK9ozc51fqwjiVdMaYZL7rg

    May 6, 2021 at 17:50 | Report abuse | Reply
  11. Forklift Tires Los Angeles

    I used to be able to find good information from your articles.

    https://map.google.com.uy/url?sa=i&rct=j&url=https3A2F2Fforkliftrentalsnearme.com&sa=D&sntz=1&usg=AFQjCNGaY_nlK9ozc51fqwjiVdMaYZL7rg

    May 6, 2021 at 23:43 | Report abuse | Reply
  12. truck stop near me

    http://adbor-piccolino.atspace.eu/redirect.php?url=https://www.postfallswebsites.com

    May 7, 2021 at 04:04 | Report abuse | Reply
  13. box truck repairs

    http://www.tunesbaby.com/yt/?x=j5CE6R4KLz4

    May 7, 2021 at 06:26 | Report abuse | Reply
  14. New Forklift For Sale California

    http://videoonline.pk/watch.php?v=UVAfKfhBrXE

    May 7, 2021 at 08:31 | Report abuse | Reply
  15. All Liquor Stores Near Me

    After I initially commented I appear to have clicked the -Notify me when new comments are added- checkbox and now whenever a comment is added I receive 4 emails with the exact same comment. Perhaps there is a means you are able to remove me from that service? Appreciate it!

    http://feeds.fabbaloo.com/~/t/0/0/fabbaloo/default/~howtobrews.com/

    May 7, 2021 at 08:31 | Report abuse | Reply
  16. tire stores near me

    https://harlekin-power.de/redirect.php?url=http://www.statewidesecurityguards.com

    May 7, 2021 at 14:57 | Report abuse | Reply
  17. rv parts and repair

    An interesting discussion is worth comment. I think that you ought to write more on this issue, it might not be a taboo subject but generally folks don't speak about these topics. To the next! Many thanks!!

    http://www.wastedhumanity.com/DolPVJRibfw

    May 7, 2021 at 19:41 | Report abuse | Reply
  18. Social Media Marketing Santa Ana

    http://corpus.upol.cz/sites/all/modules/pubdlcnt/pubdlcnt.php?file=https://affordableranking.com

    May 7, 2021 at 23:07 | Report abuse | Reply
  19. rv media center

    Oh my goodness! Amazing article dude! Thanks, However I am having difficulties with your RSS. I don’t know why I can't subscribe to it. Is there anybody else having identical RSS issues? Anyone that knows the answer can you kindly respond? Thanks!!

    http://www.e-z-gotextron.net/__media__/js/netsoltrademark.php?d=ocrvcenter.com

    May 7, 2021 at 23:25 | Report abuse | Reply
  20. Digital Marketing Companies Near Me

    http://rings.ru/r/?url=http://affordableranking.com

    May 8, 2021 at 02:05 | Report abuse | Reply
  21. Seo Marketing Experts

    http://fundatec.org/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 8, 2021 at 13:16 | Report abuse | Reply
  22. rv parts los angeles

    http://www.shelterisland.com/__media__/js/netsoltrademark.php?d=ocrvcenter.com

    May 8, 2021 at 14:03 | Report abuse | Reply
  23. Social Media Marketing Association

    http://bloodblackandblue.com/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 8, 2021 at 14:52 | Report abuse | Reply
  24. Seo Marketing Experts

    http://www.internethostpilot.com/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 8, 2021 at 16:39 | Report abuse | Reply
  25. Internet Marketing Company Orange County

    http://www.vforum.org/forum/redirect-to/?redirect=http://affordableranking.com

    May 8, 2021 at 20:21 | Report abuse | Reply
  26. RV Wraps Orange County

    https://payskip.org/SsWi1GIr1BcI

    May 9, 2021 at 01:03 | Report abuse | Reply
  27. RV Interior Remodeling Los Angeles

    When I initially commented I appear to have clicked on the -Notify me when new comments are added- checkbox and now every time a comment is added I recieve four emails with the same comment. Is there an easy method you are able to remove me from that service? Thank you!

    https://payskip.org/5OgjdIuO5a

    May 9, 2021 at 01:32 | Report abuse | Reply
  28. Digital Marketing Consultant

    You have made some really good points there. I looked on the net for additional information about the issue and found most people will go along with your views on this web site.

    https://www.drbigboobs.com/cgi-bin/at3/out.cgi?id=25&trade=https://affordableranking.com

    May 9, 2021 at 02:13 | Report abuse | Reply
  29. Content Marketing Consultants

    https://www.guitarfactory.com/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 9, 2021 at 03:57 | Report abuse | Reply
  30. Google Marketing Engineer

    Excellent article. I will be dealing with some of these issues as well..

    http://baby-best.ru/go?http://affordableranking.com

    May 9, 2021 at 08:33 | Report abuse | Reply
  31. Seo Marketing Ideas

    You ought to be a part of a contest for one of the best websites on the internet. I am going to highly recommend this web site!

    http://www.lamystiquedespierres.com/liens/redirect.php3?NUM=94&URL=http://www.affordableranking.com

    May 9, 2021 at 12:50 | Report abuse | Reply
  32. Internet Marketing Firm

    There is certainly a great deal to find out about this issue. I really like all of the points you have made.

    https://jonilane.com/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 9, 2021 at 14:09 | Report abuse | Reply
  33. RV Body Shop Riverside

    An outstanding share! I've just forwarded this onto a colleague who had been conducting a little research on this. And he in fact ordered me breakfast due to the fact that I discovered it for him... lol. So let me reword this.... Thank YOU for the meal!! But yeah, thanx for spending some time to talk about this subject here on your blog.

    http://www.eutudakozo.com/redirect.php?id=OTA5NzAy&site=ocrvcenter.com

    May 9, 2021 at 18:07 | Report abuse | Reply
  34. Local Marketing Services

    Great info. Lucky me I recently found your blog by chance (stumbleupon). I have saved as a favorite for later!

    http://www.sg-servicerportal.net/__media__/js/netsoltrademark.php?d=www.affordableranking.com

    May 9, 2021 at 22:28 | Report abuse | Reply
  35. Seo Marketing Specialist

    It’s hard to find educated people for this topic, but you seem like you know what you’re talking about! Thanks

    https://jwarchitects.com/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 10, 2021 at 14:53 | Report abuse | Reply
  36. Internet Marketing Job

    When I originally commented I appear to have clicked the -Notify me when new comments are added- checkbox and from now on whenever a comment is added I receive four emails with the exact same comment. There has to be a way you are able to remove me from that service? Cheers!

    http://www.satotekkou.co.jp/sites/all/modules/pubdlcnt/pubdlcnt.php?file=http://affordableranking.com

    May 10, 2021 at 21:08 | Report abuse | Reply
  37. Internet Marketing Mentor

    https://www.exasoft.cz/redir.asp?WenId=1591&WenUrllink=https://affordableranking.com

    May 10, 2021 at 22:22 | Report abuse | Reply
  38. Video Marketing Quotes

    https://goodell.biz/__media__/js/netsoltrademark.php?d=www.affordableranking.com

    May 10, 2021 at 23:06 | Report abuse | Reply
  39. Content Marketing Service

    http://javafile.com/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 11, 2021 at 05:07 | Report abuse | Reply
  40. Content Marketing Idea

    I used to be able to find good information from your articles.

    http://toolsir.com/alexa/siteinfo/affordableranking.com

    May 11, 2021 at 06:20 | Report abuse | Reply
  41. Video Marketing Store

    I was able to find good info from your blog posts.

    https://www.nationalreviewonline.com/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 11, 2021 at 07:01 | Report abuse | Reply
  42. Local Marketing Experts

    Very good article. I'm facing a few of these issues as well..

    http://www.4k-star.jp/count1/c.cgi?cnt=01251&url=http://www.affordableranking.com

    May 11, 2021 at 08:19 | Report abuse | Reply
  43. Video Marketing Program

    http://publicdatasource.net/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 11, 2021 at 08:22 | Report abuse | Reply
  44. Internet Marketing Services Near Me

    Right here is the perfect website for everyone who hopes to understand this topic. You realize so much its almost hard to argue with you (not that I actually would want to…HaHa). You certainly put a fresh spin on a topic that's been discussed for many years. Great stuff, just excellent!

    http://adunare.com/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 11, 2021 at 11:06 | Report abuse | Reply
  45. Berry Bartow

    Have you ever heard of second life (sl for short). It is basically a online game where you can do anything you want. SL is literally my second life (pun intended lol). If you would like to see more you can see these Second Life articles and blogs

    http://myvedana.blogspot.com/2005/01/more-than-this.html?m=0

    May 11, 2021 at 11:43 | Report abuse | Reply
  46. Digital Marketing Agencies Near Me

    I blog often and I genuinely thank you for your content. Your article has truly peaked my interest. I'm going to bookmark your site and keep checking for new details about once a week. I subscribed to your Feed too.

    https://www.admvoznesenie.ru/bitrix/rk.php?goto=https://www.affordableranking.com

    May 11, 2021 at 11:44 | Report abuse | Reply
  47. Digital Marketing Studio

    Howdy! I could have sworn I’ve visited your blog before but after looking at many of the articles I realized it’s new to me. Regardless, I’m definitely delighted I stumbled upon it and I’ll be bookmarking it and checking back often!

    https://scibridge.net/__media__/js/netsoltrademark.php?d=hiddenapples.com

    May 11, 2021 at 14:33 | Report abuse | Reply
  48. Social Media Marketing Jobs

    This web site truly has all the info I wanted about this subject and didn’t know who to ask.

    https://atlantacasualtyagents.net/__media__/js/netsoltrademark.php?d=ppcpostfalls.com

    May 11, 2021 at 16:10 | Report abuse | Reply
  49. Content Marketing Business

    After going over a few of the blog posts on your web page, I honestly appreciate your way of writing a blog. I bookmarked it to my bookmark website list and will be checking back in the near future. Please check out my web site as well and let me know how you feel.

    http://www.moreliving.co.jp/blog_pla/?wptouch_switch=desktop&redirect=http3A2F2Frankemailads.com

    May 11, 2021 at 16:55 | Report abuse | Reply
  50. Social Media Marketing Mentors

    https://martial-art-forum.net/__media__/js/netsoltrademark.php?d=www.rankemailads.com

    May 11, 2021 at 17:04 | Report abuse | Reply
1 2 3 4 5 6 7 8 9

Post a comment


 

CNN welcomes a lively and courteous discussion as long as you follow the Rules of Conduct set forth in our Terms of Service. Comments are not pre-screened before they post. You agree that anything you post may be used, along with your name and profile picture, in accordance with our Privacy Policy and the license you have granted pursuant to our Terms of Service.

Advertisement
About this blog

Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.