Vector-borne diseases are illnesses caused by pathogens that are transmitted to humans through vectors, which are often insects like mosquitoes and ticks. These vectors carry the disease-causing organisms, such as viruses, bacteria, or parasites, from one host to another. Common examples of vector-borne diseases include malaria, dengue fever, and Lyme disease. Preventing vector-borne diseases involves controlling the populations of these vectors and protecting individuals from bites. This can be achieved through measures like using insect repellent, wearing protective clothing, and eliminating standing water where mosquitoes breed. Awareness and education are key to reducing the spread of these diseases.