Aedes aegypti
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| Aedes aegypti (Linnaeus, 1762) |
Aedes aegypti, commonly known as the yellow fever mosquito, is a mosquito that can host the dengue fever, Chikungunya and yellow fever viruses (and other diseases as well). One group of researchers recently proposed that A. aegypti be renamed Stegomyia aegypti [1], but this proposal has yet to be widely accepted by the scientific community. The mosquito can be recognized by white markings, although other mosquitos may have only slightly different patterns.[citation needed] The mosquito is most frequently found in the tropics[2]; it has some presence in the southeastern United States (such as the lower half of Florida), but it seems to have been competitively displaced by the introduction of Aedes albopictus[citation needed].
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Appearance
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It is smaller in comparison to other mosquitoes, usually between 3 to 4 mm in length. [3]It is totally black apart from white 'spots' on the body and head regions and white rings on the legs.
Genetic mapping
The genome of this species of mosquito was mapped, and published on 2007-05-17. The effort in mapping its DNA was intended to provide new avenues for research into insecticides and possible genetic modification to prevent the spread of disease. This was the second mosquito species to have its genome mapped in full. The first was Anopheles gambiae. The published data included the 1.38 billion base pairs containing the insect's estimated 15,419 protein encoding genes. The sequence indicates that the species diverged from Drosophila melanogaster (the common fruit fly) about 250 million years ago, and that Anopheles gambiae and this species diverged about 150 million years ago.[4][5]
Spread of disease and prevention
The CDC traveler's page on preventing dengue fever suggests using mosquito repellents that contain DEET (N, N-diethylmetatoluamide). It also explains the following:
1) Although it may feed at any time, the mosquito bites humans only between a few hours after dawn until an hour or so after sunset.
2) The mosquito's preferred breeding areas are in areas of stagnant water, such as flower vases, uncovered barrels, buckets, and discarded tires, but the most dangerous areas are wet shower floors and toilet bowls, as they allow the mosquitos to breed right in the residence.
External links
- VectorBase's genomic resource for Aedes aegypti
- A page that has an image of Aedes aegypti
- Aedes aegypti page from University of Sydney, Australia
- Aedes aegypti and Dengue fever
- United States CDC page on dengue fever containing information on prevalence of Aedes aegypti worldwide and past efforts to eradicate it
References
- ↑ Reinert, J. F., R. E. Harbach & I. J. Kitching (2004). Phylogeny and classification of Aedini (Diptera: Culicidae), based on morphological characters of all life stages. Zool. J. Linn. Soc. 142: 289–368.
- ↑ Womack, M. (1993). "The yellow fever mosquito, Aedes aegypti.". Wing Beats 5 (4): 4.
- ↑ Roland Mortimer. Aedes aegypti and Dengue fever. Retrieved on 2007-05-19.
- ↑ Heather Kowalski (2007-05-17). Scientists at J. Craig Venter Institute Publish Draft Genome Sequence from Aedes aegypti, Mosquito Responsible for Yellow Fever, Dengue Fever. J. Craig Venter Institute.
- ↑ Genome Of Yellow Fever/dengue Fever Mosquito Sequenced. ScienceDaily (2007-05-18).
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Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
