Vector-borne diseases are illnesses transmitted to humans through the bite of infected vectors, such as mosquitoes, ticks, and fleas. Common diseases include malaria, dengue, Zika virus, Lyme disease, and yellow fever. These diseases cause a wide range of symptoms, from fever and fatigue to joint pain, rashes, and severe complications like organ failure. Prevention strategies focus on controlling vector populations through measures like insecticides, bed nets, and eliminating breeding sites, as well as personal protection with repellents and protective clothing. Climate change, urbanization, and inadequate sanitation contribute to the spread of vector-borne diseases, making global control efforts essential.