Dengue Fever

Dengue Fever

Dengue Fever
There are four distinct types of the virions of dengue fever. This virus is RNA virion of apparently icosahedral symmetry and with envelope. The virus is transmitted when a diseased mosquito injects its saliva into the wound during a blood meal.

Only the female bites for her need for human blood for egg production. The mosquito becomes infectious nine to twelve days after it has consumed blood from dengue fever victim, and it will soon die regardless of whether it transmits the virus.

Dengue fever is accompanied by severe fever and prostration. There is severe pain in limbs and muscles and one feels if bones are breaking break bone fever. Immunity to a particular strain virus is life long. Due to infection, the person may develop dengue hemorrhagic fever (DHF). There is facial rash, severe vomitting and circulatory failure due to shock. This disease has been traditionally found in areas of southeast Pacific and in southeast Asia. Later it also broke into central America and southeast Mexico.

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