Aedes aegypti: The Mosquito that transmits Zika (and Dengue and Chikun – Travel Medicine, Inc.
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Aedes aegypti: The Mosquito that transmits Zika (and Dengue and Chikungunya)

Posted by Stuart Rose on

Aedes aegypti is a mosquito that can spread dengue fever, Chikungunya fever and yellow fever, as well as the Zika Virus. While there is a vaccine against yellow fever, none are available against dengue fever, chikungunya fever or the Zika virus. You must apply an insect repellent during daylight hours to prevent these diseases.
A female Aedes aegypti
Figure 1: A female Aedes aegypti taking a blood meal

Aedes aegypti
 is a day-biting mosquito and is most active for approximately two hours after sunrise and several hours before sunset.

The mosquitoes rest indoors, in closets and other dark places. Outside, they rest where it is cool and shaded.

Only the female mosquitoes bite humans because they need a blood meal to produce their eggs. They will also feed on fruit. Male Aedes aegypti mosquitoes feed exclusively on fruit.

Feeding on humans generally occurs at one to two hour intervals. The mosquito attacks generally from below or behind, usually from underneath desks or chairs and mainly at the feet and ankles. 

This mosquito originated from Africa, but is now present globally in tropical and sub-tropical regions. The insect is very fast in flight unless gorged with blood. Other types of mosquito even fly into your face and can be easily caught or killed, not Aedes aegypti.

The Aedes aegypti has re-established itself in most parts of South America due to lack of commitment and financial backing necessary to maintain the eradication program. In the United Sates, the mosquito is found in at least 23 states, including the southeastern U.S., up the east coast to New York, and west to Indiana and Kentucky. 





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