West Nile Virus Essay

West Nile Virus Essay

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Emerging Infectious Diseases are diseases that are new, re-emerging, or drug-resistant and the incidence in humans has increased within the past two decades or whose incidence threatens to increase in the near future. Factors that contribute to the emergence of new infectious diseases are microbial adaptation and change, widespread usage of antibiotics, economic development and land use, international travel and commerce, human demographics and behavior, and technology and industry. One emerging infectious disease that has been re-emerging is the West Nile Virus.
Disease and Pathology
West Nile virus is an emerging infectious disease because it keeps re-emerging; showing an increase in incidence and it has spread to different geographic areas by modern transportation. This virus was first identified in 1937 in Uganda, Africa and it has existed in Africa and the Middle East for decades, if not centuries. But in 1999, it landed in Queens, New York, via an unknown route. The infection then proceeded to move across the country and since then has spread to 48 states, Canada, Mexico, and many other countries.
Encephalitis is a severe symptom and the most common symptom in hospitalized West Nile Virus patients, affecting 50% to 84% of patients; it manifests with behavioral or personality changes such as irritability, confusion, or disorientation that can evolve into stupor and even a coma, with mental status changes persisting for up to several weeks. Although very serious symptoms rarely occur in infected people, about 20% of infected people do have milder symptoms, which include, fever, headache, body aches, nausea, vomiting and sometimes swollen lymph glands. The majority (80%) of infected people have no symptoms. Symptoms of W...


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...previous years. In 2010 the virus was more prevalent in Greece, the Russian Federation, and Romania.







Works Cited

1. Arabians, Jamal . "Symptoms of West Nile Virus." AutoFly Spray Systems. 2011. 10 Apr. 2011. .

2. Dugdale, David C. West Nile Virus. 18 Mar. 2011. .

3. "Flavivirus." Wikipedia. 14 Apr. 2011. .

4. "Flaviviruses Fact Sheet." Noth Dakota Department of Health. 11 Apr. 2011. .

5. Tortura, Gerard, and Berdell Funke, and Christine Case. Microbiology. Benjamin Cummings, 2009.

6. "West Nile Virus Homepage." Center for Disease Control and Prevention. 17 Mar. 2011. .

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