Vector-borne diseases are illnesses caused by pathogens such as viruses, bacteria, or parasites that are transmitted to humans through the bite of infected vectors like mosquitoes, ticks, fleas, and flies. These diseases pose significant public health challenges globally, affecting millions each year. Malaria, dengue fever, Lyme disease, and Zika virus are prominent examples, each varying in geographic distribution and severity. Vector control measures, such as insecticide-treated bed nets, environmental management, and vaccination programs, play crucial roles in mitigating the spread of these diseases, highlighting the importance of integrated approaches to disease prevention and control.
* Within epidemiology and medicine, a vector refers to a disease vector, which is an organism that carries or transmits infectious diseases. This is considered an infection vector and is noted in the biological branch, immunology.