Dengue fever is quite common in different pockets of India. This condition or disease is caused by viruses which are transmitted by the mosquitoes. Just like malaria, in case of Dengue as well mosquitoes act as the primary vector of the virus and humans as the secondary vector. Dengue fever can be serious if not diagnosed and treated in time. It can even cause death if there is a delay in taking the right measures. This article will inform you about the symptoms and signs of the condition, as well as the cause of the disease and also the prevention.