Dengue Fever

26 03 2013

Dengue fever , also known as breakbone fever , is an infectious tropical disease caused by the dengue virus. Symptoms include fever, headache, muscle and joint pains, and a characteristic skin rash that is similar to measles. In a small proportion of cases the disease develops into the life-threatening dengue hemorrhagic fever, resulting in bleeding, low levels of blood platelets and blood plasma leakage, or into dengue shock syndrome , where dangerously low blood pressure occurs. Dengue is transmitted by several species of mosquito within the genus Aedes, principally A. aegypti. The virus has four different types; infection with one type usually gives lifelong immunity to that type, but only short-term immunity to the
others. Subsequent infection with a different type
increases the risk of severe complications. As there
is no commercially available vaccine, prevention is sought by reducing the habitat and the number of
mosquitoes and limiting exposure to bites.

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