Yellow Fever

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  • Topic: Yellow fever, Malaria, Mosquito
  • Pages : 2 (647 words )
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  • Published : March 29, 2011
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Case Study #3
BIO 225(afternoon lab)

1.) Three diseases that could possibly be related to Todd's case are Malaria, Yellow Fever, and Typhoid Fever. All of these included the same symptoms, such as: fever, headache, chills, vomiting, bleeding of some type(gums or nose…. even though "nose bleeding" wasn't a symptom of Todd's… it still threw up a red flag to me), joint pain(could be related to back pain), liver symptoms(yellow skin/jaundice - Malaria doesn't have "liver symptoms", but it does have 'anemia' as a symptom, so this still placed it as a "contender" for me)…etc.

2.) The pathogen most likely affecting Todd is the genus Flavivirus, which is transmitted by the vector Masoni africana. I believe this to be the pathogen & vector not only because it is the primary carrier of yellow fever(which matches the signs & symptoms Todd was experiencing), but also because it is found in tropical areas(they were in the rain forests of Ghana).

3.) The clinical name for Todd's condition is Jungle/Sylvatic Yellow Fever(Coquillettidia fuscopennata). It is usually spread from infected monkeys to humans by the bite of a female mosquito. It is most commonly found in tropical rain forests(aka 'jungles')…. this is where the "jungle" part of the name of the condition derives from. - The "yellow" part of 'Yellow Fever' comes from the fact that as the virus enters the later(toxic phase), the liver is damaged, causing jaundice(YELLOWing of the skin).

4.) There are two types of Yellow Fever… Urban Yellow Fever and Jungle/Sylvatic Yellow Fever. The Urban Yellow Fever is transmitted by the bite of the Aedes aegypti mosquito. It is spread when the mosquito bites an infected person and then carries that virus to another human. The Jungle/Sylvatic Yellow Fever usually originates in monkeys and is typically spread to humans when they enter a rainforest in Africa(or any other tropical atmosphere) via the Masoni africana. -This virus can't be spread from person to...
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