Dengue Fever

Length: 8 Pages 2052 Words

Dengue Fever Dengue fever is a flu-like viral disease common throughout the tropical and sub-tropical regions around the world, mainly in urban and peri-urban areas. Today, it afflicts an estimated 50 million to 100 million in the tropics (Epstein, 2000). The virus has four antigenically related serotypes, which are named DEN-1, DEN-2, DEN-3, and DEN-4. Each dengue serotype is a variation of the flavivrus genus. Dengue is spread by the aedes aegypti, a domestic, day-biting mosquito that prefers to bite humans. Currently, there is no vaccine available to prevent dengue. Each type of the dengue virus is re-emerging worldwide, especially in the Western Hemisphere. Research has shown that several factors are contributing to the resurgence of dengue fever such as uncontrolled urbanization, increased international travel, substandard socio-economical conditions, and finally global warming. Global warming has shown to be a major contributor to the spread of dengue fever. On a molecular level, dengue fever is classified as a flavivirus and appears as a spherical particle, about 40 to 50 nanometers in diameter ( There is a lipid envelope enclosing a nucleocapsid core ( The dengue v Continue...

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The scientists concluded that the mesocyclops crustacean should be incorporated into a specifically designed community-based control program (Holynska, 2000). 1 on page 8) analyzing the impact of a 2 degree Celsius and a 4 degree Celsius temperature rise on the potential for dengue. Thus, this disease continues to go undetected in its early stages and thus increases the risk of shock and possibly death. irus genome is a single-strand positive sense RNA of approximately 11 kilobases (www. The reason for this global emergence of dengue and DHF are many. Floods and droughts are two extreme weather events also triggered by global warming. Both are inadequate in totally preventing the disease from spreading. While dengue transmission rates continue to climb with increasing global temperatures, action must be taken to combat this viral threat to human health.


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Global Warming
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