" Before the discovery of a susceptible host was known, it was found that a person who contracted the virus and fully recovered from it obtained life-long immunity to the disease. .
Signs and Symptoms of Yellow Fever.
One will incur three stages after contracting the yellow fever virus. The incubation stage, usually lasts from 3-6 days; generally, a majority of the people who become infected with the virus never obtain any illness or experience just a mild illness at best. The next stage is the acute stage in which you have a possibility of showing one or more of the signs and symptoms. Those include: fever, headaches, muscle aches, nausea, vomiting or both, loss of appetite, dizziness, and red eyes, face or tongue. Normally these symptoms improve within a few days, however if they do not, the infected person moves to the last stage of symptoms called the toxic stage. It is during the toxic stage, signs and symptoms increase in severity and new life threatening ones also become added to the already large list. They can include but are not limited to: jaundice, abdominal pain and vomiting; sometimes with blood, bleeding from the nose, mouth and eyes, arrhythmia, liver and kidney failure, brain dysfunction including delirium, seizures and possible coma. The toxic stage is the most fatal phase of yellow fever. If your travel destinations include places where outbreaks occur, you should speak to a doctor before you leave and again if you ever develop any of the symptoms listed above.
How Yellow Fever is Spread/Transmitted/Contracted.
Yellow fever is spread through the bites of certain mosquitos. The most common mosquito to carry the virus is the Aedes aegypti, but the tiger mosquito (Aedes albopictus) can also spread the disease. It is a simple but rather mediocre process of how the virus is actually transmitted. The first thing that must happen is the female mosquito must ingest blood from an infected species whether human or primate.
