Category B – Mosquito Biology and Control Practice Test

Dengue fever is transmitted by mosquitoes in the Aedes genus, with two species standing out as the primary urban vectors. These two are Aedes aegypti and Aedes albopictus. They are especially effective at spreading dengue because they bite people during the day, thrive in human-made environments, and breed in small amounts of standing water around homes and water containers. Aedes aegypti tends to stay very close to humans and humans’ dwellings, making it a dominant force in urban transmission. Aedes albopictus, while more adaptable to a range of habitats, can also invade urban areas and contribute to dengue spread, especially in regions where Ae. aegypti is present or where both species coexist.

The other species listed are not the primary dengue vectors. They may be associated with other diseases or occur in different ecological contexts, but they are not the two most recognized culprits responsible for transmitting dengue to people.