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Yellow fever Fact sheet • Yellow fever is an acute viral haemorrhagic disease transmitted by infected mosquitoes. The “yellow” in the name refers to the jaundice that affects some patients. • Up to 50% of severely affected persons without treatment will die from yellow fever.
How yellow fever is spread. The virus that causes yellow fever is passed to humans through the bites of infected mosquitoes. The mosquitoes that spread the infection are usually active and bite during daylight hours, and are found in both urban and rural areas. Yellow fever can’t be passed directly from person to person through close contact ...
About 15 out of 100 people who get yellow fever go on to develop more serious symptoms: Jaundice (yellowing of the skin or eyes) Bleeding from multiple parts of the body; Liver, kidney, lung, and other organ failures; Yellow fever does not spread from person to person, like through touching or kissing. The virus that causes yellow fever is ...
May 31, 2021 · Facts about yellow fever. 1. Name and nature of infecting organism. Yellow fever (YF) is an African mosquito-borne infection of primates. It is caused by a virus of the Flavivirus genus of the Flaviviridae family. In its natural habitat, it is transmitted between monkeys by forest-dwelling primatophilic Aedes mosquitoes.
What is yellow fever? Yellow fever is a disease caused by a virus that is spread to people by the bite of an infected mosquito. Where does yellow fever virus occur? Yellow fever virus is found in tropical and subtropical areas in South America and Africa. Yellow fever virus is a very rare cause of illness in U.S. travelers to these areas.
Yellow fever (YF) is a viral disease, endemic to tropical regions of Africa and the Americas. YF principally affects humans and nonhuman primates, and is transmitted via the bite of infected mosquitoes. The agent of YF, yellow fever virus (YFV), can cause devastating epidemics of potentially fatal, hemorrhagic disease.
Following the bite of an infected mosquito, YF virus replicates and spreads to other areas of the body. Disease onset is typically abrupt and characterized by fever, chills, malaise, headache, back pain, nausea, and dizziness. In about 15% of cases the disease progresses to a more severe form with haemorrhagic manifestations.
