Dengue: Fever and Public Health Threat

DENGUE FEVER (Outline)

Specific Purpose : To inform my audience about the nature, symptoms, treatment and prevention of Dengue fever.

Central Idea : People now at risk from dengue and estimates that there may be 50 million cases of dengue infection worldwide every year. The disease is now endemic in more than 100 countries.

Introduction

I. Dengue fever, also called dengue, is a potentially serious disease caused by a virus. There are four types of dengue virus that can cause illness in humans (DEN-1, DEN-2, DEN-3 and DEN-4).

II. Dengue is rare in the U.S., but is common and a serious public health threat in warm sub-tropical and tropical areas of the world. It is most common in urban areas and outbreaks occur commonly during the rainy season when mosquitoes breed heavily in standing water.

III. The incidence of dengue fever is on the rise worldwide, and in some areas of Asia, complications of the disease are a leading cause of serious illness and death in children.

Body

I. Dengue viruses are transmitted between humans by the bite of an infected Aedes mosquito.

A. Mosquitoes pick up a dengue virus when they bite a human who is already infected with the virus.

1. The mosquito then carries it in its own blood and spreads it when it bites other humans.

2. After a dengue virus enters the human bloodstream, it spreads throughout the body.

B. There are a number of systems common to recognise these Dengue fevers occur.

II. Symptoms appear in about eight to ten days after a bite from an infected mosquito.

A. Symptoms are flu-like and can include high fever, nausea, vomiting, body aches, and headache.

B. Most people can recover from dengue fever, but some cases can progress into a life-threatening complication called dengue hemorrhagic fever. Symptoms of this disease include severe, uncontrolled haemorrhage and shock.

III. These methods guarantee prevention of Dengue fever.

a. Avoid mosquito bites , b. Mosquito repellent c. Protective clothing d. Window screens e. Remove water-filled mosquito breeding areas

IV. There is no definite treatment for or vaccine to prevent dengue fever.

A. Most people who get dengue fever will recover in about 2 weeks to a month by getting plenty of rest, increasing fluid intake and taking acetaminophen (Tylenol) for fever and body aches.

B. People with dengue fever should not take aspirin or medications that contain aspirin because it increases the risk for severe bleeding.

Conclusion

I. As we have seen, Dengue Fever affects millions of people.

II. Fortunately, we have treatment options to prevent dengue fever.

III. With my explanation about Dengue fever just now, I hope you will recovered from it and get to see the doctor immediately when they occur.

Bibliography

Internet Sources

http://en.wikipedia.org/wiki/Dengue_fever

http://www.medicinenet.com/dengue_fever/article.htm

http://www.wrongdiagnosis.com/d/dengue_fever/symptoms.htm

Bibliography: Internet Sources http://en.wikipedia.org/wiki/Dengue_fever http://www.medicinenet.com/dengue_fever/article.htm http://www.wrongdiagnosis.com/d/dengue_fever/symptoms.htm