Why Can’t You See Mosquitoes?
WouterAmong the many nuisances of summer, one of the most annoying is being bitten by mosquitoes. These tiny biting insects carry diseases that can be deadly. They spread viruses like yellow fever and West Nile, and they can even carry malaria.
To find the right host, mosquitoes use specialized behaviors and senses. They use a special mouthpart to pierce the skin. They then inject saliva into the skin, which keeps blood flowing. They also use scents and odors to find humans.
One of the most important attractants is carbon dioxide. Mosquitoes can detect carbon dioxide from up to 164 feet away. When they detect higher concentrations, they fly upwind to orient themselves.
The amount of chemicals you release determines how likely you are to get bitten. Mosquitoes are particularly attracted to people wearing dark colors. They are also attracted to people who sweat.
Other chemicals released by people include sebum, which is a waxy coating on the human skin. Sebum produces a chemical called carboxylic acid, which smells like cheese or smelly feet.
When mosquitoes bite, they also release saliva, which keeps blood flowing. These saliva molecules have an anesthetic quality. The saliva is also used to carry disease from one victim to another. If you are bitten by mosquitoes, you should seek medical attention. Some people experience allergic reactions to mosquitoes. The best way to prevent bites is to use a mosquito repellent.
You can also use a non-drowsy antihistamine. A doctor can advise you on preventative treatments and vaccines.
