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Yellow Fever is a viral disease transmitted by the bite of mosquitoes. A mosquito must first bit someone with the disease then come back and bite someone else.

The virus enters the body in the mosquitoes saliva.

Viruses work by entering a cell and taking over the function of the cell's nucleus, causing the cell to make multiple copies of themselves. These then burst out and go on to take over other cells. This process continues until the infected person dies OR until the persons immune system recognizes the virus and develops antibodies that surround and destroy the viruses so that they can no longer get to new cells.

The virus particularly targets liver cells and this causes liver damage which results in the jaundice (yellow color) of the affected person.

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12y ago

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