Under experimental conditions the Aedes albopictus mosquito, also known as the Asian Tiger Mosquito, has been found to be a vector of West Nile Virus. Aedes is a genus of the Culicine family of mosquitoes.
The main transmitter of the West Nile virus in the southeast is the species C. quinquefasciatus. Eliminating puddles and small containers of water can greatly reduce this mosquito’s population.
This image depicted a female Aedes aegypti mosquito as she was obtaining a blood-meal from a human host through her fascicle, which being transparent, reflected the blood’s red color. As it filled with blood, the abdomen became distended, thereby, stretching the exterior exoskeletal surface, causing it to become transparent, and allowing the collecting blood to become visible as an enlarging intra-abdominal red mass.
DF and DHF are primarily diseases of tropical and sub-tropical areas, and the four different dengue serotypes (DEN-1, DEN-2, DEN-3, and DEN-4), are maintained in a cycle that involves humans and the Aedes mosquito. However, Aedes aegypti, a domestic, day-biting mosquito that prefers to feed on humans, is the most common Aedes species. Infections produce a spectrum of clinical illness ranging from a nonspecific viral syndrome to severe and fatal hemorrhagic disease. Important risk factors for DHF include the strain of the infecting virus, as well as the age, and especially the prior dengue infection history of the patient.
As the primary vector responsible for the transmission of the Flavivirus Dengue (DF), and Dengue hemorrhagic fever (DHF), the day-biting Aedes aegypti mosquito prefers to feed on its human hosts. Ae. aegypti also plays a major role as a vector for another Flavivirus, “Yellow fever”. Frequently found in its tropical environs, the white banded markings on the tarsal segments of its jointed legs, though distinguishing it as Ae. aegypti, are similar to some other mosquito species. Also note the lyre-shaped, silvery-white markings on its thoracic region as well, which is also a determining morphologic identifying characteristic.