Historically known as yellow jack or yellow plague, is an acute viral disease. In most cases, symptoms include fever, chills, loss of appetite, nausea, muscle pains particularly in the back, and headaches. The evolutionary origins of yellow fever most likely lie in Africa, with transmission of the disease from primates to human beings. The disease is caused by the yellow fever virus and is spread by the bite of the female mosquito. It only infects humans, other primates, and several species of mosquitoes. A safe and effective vaccine against yellow fever exists and some countries require vaccinations for travelers.
No comments:
Post a Comment