MOSQUITOES PREFER MEN OVER WOMEN

A similar effect can be seen among women. When scientists compared pregnant women with their non-pregnant counterparts in a Lancet study in 2000,they found that the pregnant women attracted twice as many mosquitoes. The study noted that the pregnant women exhaled more carbon dioxide and had higher body temperatures,allowing mosquitoes to detect them more easily.
In addition to carbon dioxide,lactic acid is strong attractant,which is why people are attacked more when they are outside and sweating,said Dr Clifford W Bassett of Allergy and Asthma Care of New York.

Mosquitoes can sense these chemicals off the skin from up to 30 metres away, Dr Bassett said.
For people who react strongly to bites,he recommends insect repellent and taking a non-sedating oral antihistamine which can lessen the itch after a bite before spending time outdoors.

THE BOTTOM LINE
Research suggests that men are more likely to be attacked by mosquitoes than are women.
NYT