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By Dr Paul Parham, Honorary Lecturer in Infectious Disease Epidemiology
Many tropical diseases such as malaria, Chagas disease and dengue are transmitted to humans via mosquitoes and other carriers known as vectors. These vector-borne diseases continue to have a major impact on human health in the developing world: each year, more than a billion people become infected and around a million people die. In addition, around one in six cases of illness and disability worldwide arise from these diseases.
Malaria arguably continues to attract the most attention of all the vector-borne diseases by virtue of causing the greatest global disease burden.