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Yellow fever

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jj liu

on 29 October 2013

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Transcript of Yellow fever

Yellow Fever
Thank you for your attention!
Treatments/cures:
There are no current anti-viral treatments available to combat the yellow fever virus. The only treatment of yellow fever involves attempts to relieve its symptoms. Fevers and pain should be relieved with acetaminophen, not aspirin or ibuprofen, both of which could increase the already-present risk of bleeding. Dehydration needs to be carefully avoided. This can be accomplished by increasing fluids. The risk of bleeding into the stomach can be decreased through the administration of antacids and other medications. Hemorrhage may require blood transfusions.
Description:
In order to understand how yellow fever is passed, several terms need to be defined. The word "host" refers to an animal that can be infected with a particular disease. The term "vector" refers to an organism which can carry a particular disease-causing agent without actually
developing the disease. The vector can then pass the virus or bacteria on to a new host. Yellow fever, however, cannot be passed directly from one infected human being to another. Instead, the virus responsible for yellow fever requires an intermediate vector, a mosquito, which carries the virus from one host to another.The hosts of yellow fever include both humans and monkeys.
Prognosis:
Five to ten percent of all diagnosed cases of yellow fever are fatal. Jaundice occurring during a yellow fever infection is an extremely grave predictor. Twenty to fifty percent of these patients die of the infection. Death may occur due to massive bleeding, often following a lapse into a comatose state.
Prevention:
A very safe, very effective yellow fever vaccine exists. About 95% of vaccine recipients acquire long-term immunity to the yellow fever virus. Careful measures to decrease mosquito populations in both urban areas and jungle areas in which humans are working, along with programs to vaccinate all people living in such areas, are necessary to avoid massive yellow fever outbreaks.
Area of risk
Yellow fever is a severe infectious disease, caused by a virus called a "flavivirus." This flavivirus can cause outbreaks of epidemic proportions throughout Africa and tropical America , it is transmitted to humans by mosquitoes.
Signs and symptoms:
Yellow fever begins after an incubation period of three to six days.[8] Most cases only cause a mild infection with fever, headache, chills, back pain, loss of appetite, nausea and vomiting. In these cases the infection lasts only three to four days. In fifteen percent of cases, however, sufferers enter a second, toxic phase of the disease with recurring fever, this time accompanied by jaundice due to liver damage, as well as abdominal pain. Bleeding in the mouth, the eyes and in the gastrointestinal tract will cause vomitus containing blood
This, is How people get yellow fever
Bibliography
http://www.wikipedia.ca
http://infotrac.galegroup.com
http://www.phac-aspc.gc.ca
Area of risk
Full transcript