Mosquitos: why do they bite some more than others?

Pourquoi les moustiques piquent plus certaines personnes que d’autres ?

Les moustiques ont leur préférence lorsqu’il s’agit de nous piquer. Les odeurs et le groupe sanguin guident leur choix.

Mosquitos have a preference who to sting. Blood group odours guide their choice.

  • Pourquoi les moustiques piquent plus certaines personnes que d'autres ?
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Proie régulière ou jamais piqué ? Nous ne sommes pas tous égaux face aux moustiques. Alors pourquoi les moustiques nous piquent ou ne nous piquent pas ? Contrairement aux idées reçues, ce n’est pas la peau qui guide le choix des moustiques. Ce sont les odeurs. Les odeurs et le groupe sanguin.

Selecting prey on who to sting? We are not all equal to the mosquitos. So why do they sting us or not sting us? Contrary to perceived wisdom, it is not our skin that attracts the mosquito. It is odours. Odours and blood group.

Ils captent les odeurs grâce à un système olfactif développé. Parmi leurs odeurs préférées : le dioxyde de carbone et la sueur. Les corps plus chauds ou expirants plus de CO2 sont plus attaqués comme par exemple les personnes en surpoids, les femmes enceintes ou les buveurs d’alcool. Toutefois, transpirer n’est pas une solution miracle. Certaines odeurs viennent des gênes ou des bactéries propres à chaque humain. Le groupe sanguin joue aussi. Les moustiques choisissent 2 fois plus le groupe O que le groupe A.

They are attracted thanks to a highly developed olfactory system. Among their preferred odours: carbon dioxide and sweat. Hotter bodies that expire more CO2 are attacked more often, for example heavy people, pregnant women and those who drink a lot of alcohol. However, perspiration is not the main cause. Many odours come from genetic bacteria specific to each human being. Blood group also plays a role. Mosquitoes choose twice as many group O people as group A.  

About bill

Worked in the technical / engineering area as a Science Laboratory Technician and as an Aeronautics Engineer. The artistic side involves writing under the nom de plume of Billy Olsenn, his recently written play 'A Case of Wine' was staged by the players group Straight Make-Up at the 2012 Birr one act drama festival. It's next staging was in the one act circuit is in Cavan, at Maudebawn on Sat 10 Nov 2012. Then it was performed in the Bray, Co.Wicklow at the very popular one act festival in January 2013. Next play is FEAR. A dark tale about revenge on the cruel death of two pensioners by young thugs. Neighbours hatch a devious and dangerous plan to exact old-style revenge. Bill is a member of the Drama League of Ireland and his plays have been critically vetted and certified as original pieces of work by the DLI. Another literary project is that of commemoration of an aircraft crash on Djouce mountain in Wicklow in 1946. Bill wrote articles for the 50th, 60th and most recently the 70th anniversary, (12 Aug 2016) all were published in the Wicklow Times and ensured the survivors of the crash, all French Girl Guides, were not forgotten. Articles reproduced on this website. But mostly this site gives a more general European and specific French slant on popular and not so popular articles of French news, translated to English by the author. Each article is translated on a paragraph by paragraph basis so easy to read in either language and even possible to improve either language by comparison of the short English and French paragraphs. Amusez vous bien. The author is currently writing an easy to read technical aviation book centered around the Fokker 50. Another interest is that dealt with in another of Bill's websites www.realnamara.net, a Statue of the mother of God, Mary. It was erected in 1972 in Dublin, at the end of the Bull Wall near Clontarf, and my grandfather William Nelson, was the main instigator of that project. I give talks on the history of the statue and my grandfather's adventurous and dangerous life at sea. Technical assistance with each website is by J O'N.
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