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Mosquito


Mosquito

Mosquitos have been an irritant for the human species since the beginning of time. They bite, they cause itchy bumps, they keep us awake at night with their buzzing, and they are the carriers of disease like yellow fever, dengue fever, and malaria.

About Mosquito

The mosquito is a common insect in the family Culicidae. Mosquitoes go through four stages in their life cycle: egg, larva, pupa, and adult or imago. The adult females lay their eggs in standing water, which can be a salt marsh, a lake, a puddle, a natural reservoir on a plant, or an artificial water container such as a plastic bucket.

The first three stages are aquatic and they last between 5 and 14 days, depending on the species. The eggs hatch to become larvae and then a pupae. The adult mosquito emerges from the pupa as it floats at the water surface. Adults typically live for about 4 to 8 weeks.

Mosquitoes have mouthparts that are adapted for piercing the skin of both plants and animals. While males typically feed on nectar and plant juices, the female needs to obtain nutrients from a blood meal before she can produce any eggs.

There are roughly about 3,500 species of mosquitoes found throughout the world. In some species of mosquito, the females feed on humans, and are therefore considered vectors and they are the cause of a number of infectious diseases that affect millions of people each year. Some scientists believe that eradicating mosquitoes would not have serious consequences for any ecosystems.

The principal mosquito borne diseases are the viral diseases yellow fever, dengue fever and Chikungunya, transmitted mostly by the Aedes aegypti, and malaria carried by the genus Anopheles. What was once a public health concern, HIV is now thought to be almost impossible for mosquitoes to transmit. Mosquitoes are estimated to transmit diseases to more than 700 million people annually in Africa, South America, Central America, Mexico and much of Asia with millions of resulting deaths. At least 2 million people annually die of these diseases.

Interesting enough, mosquitoes prefer some people over others. The preferential victim's sweat simply smells better than others because of the proportions of the carbon dioxide, octenol and other compounds that make up body odor. A large part of the mosquito’s sense of smell, or is devoted to sniffing out human targets. Out of the 72 types of odor receptors on its antennae, at least 27 of them are tuned in to detect chemicals found in perspiration.

There are several commercially available anti itch medications, including those taken orally, such as Benadryl, or topically applied antihistamines. For more severe cases, corticosteroids such as hydrocortisone and triamcinolone may help. Also, many effective home remedies exist, including calamine lotion and vinegar. Some doctors suggest a paste of meat tenderizer containing papain and water to help break down the proteins in the mosquito saliva.

Created by vickiz

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