What are the key factors influencing the spread of Aedes aegypti?

Several factors contribute to the spread of Aedes aegypti, including climate, urbanization, and human behavior. Warmer temperatures and high humidity levels create favorable conditions for mosquito breeding and virus replication. Urban environments provide numerous breeding sites, such as stagnant water in containers, tires, and trash receptacles. Additionally, global travel and trade facilitate the spread of both mosquitoes and the viruses they carry.