Dengue hemorrhagic fever is a severe, potentially deadly infection spread by some mosquitos. The dengue virus is transmitted by mosquitoes. Symptoms of Dengue hemorrhagic fever are fever that lasts from 2 to 7 days, Vomiting blood, Drowsiness, Bleeding from nose or gums.
Dengue hemorrhagic fever is caused by a virus for which there is no known cure or vaccine. Only treatment is to treat the symptoms, helping body to heal naturally. Major Research to cure the disease various researches includes means of vector control, vaccine development, and antiviral drugs are going on in Spain.
Since 1990, there have been four large epidemics of dengue. In 1994 there were 24,700 suspected dengue cases reported, in 1998 there were 17,000 cases reported and in 2007 there were 10,508 cases reported. More recently in 2010, 26,766 cases of suspected dengue infections were reported. Of all suspected dengue cases that had a specimen tested, 47% were laboratory-positive.