Which virus is transmitted by Aedes aegypti and is associated with yellow fever?

Dengue fever is the correct choice because it is well-documented that the Aedes aegypti mosquito is a primary vector for this virus. This mosquito is also notorious for spreading other diseases, including yellow fever, chikungunya, and Zika virus.

The association between Dengue fever and Aedes aegypti specifically is significant because this species prefers environments that are close to human habitation and is adept at breeding in artificial containers found in urban settings, making it an effective carrier of the virus. This transmission ability, along with the symptoms of Dengue fever—such as high fever, severe headache, pain behind the eyes, joint and muscle pain, and rash—demonstrates the public health impact that Aedes aegypti holds.

While the other viruses listed are transmitted by various species of mosquitoes, they are not primarily associated with Aedes aegypti. For instance, West Nile virus is typically spread by Culex mosquitoes, St. Louis encephalitis also involves Culex as the main vector, and Eastern equine encephalitis is primarily transmitted by mosquitoes from the genus Aedes, but often different species than Aedes aegypti. Therefore, the identification of Dengue fever as the disease linked to