Is a viral disease that is transmitted to humans through the bite of infected mosquitoes. Illness ranges in severity from an influenza-like syndrome to severe hepatitis and hemorrhagic fever. Yellow fever virus (YFV) is maintained in nature by mosquitoborne transmission between nonhuman primates.
A tropical epidemic disease caused by mosquito-borne viral infection.
A viral disease transmitted to humans by the bite of a specific mosquito, the Aedes aegypti.
An infectious disease, occurring especially in Africa and South America, caused by an arbovirus carried by the mosquito Aedes aegypti. It affects the liver and causes jaundice. There is no known cure and it can be fatal, but vaccination can prevent it.
Vims-caused disease, transmitted by mosquitoes, chiefly female Aedes aegypti mosquitoes, found in tropical Africa and northern South America. Symptoms include fever, headache, pains in the back and limbs, reduced urine output, jaundice, and degeneration of liver and kidney tissue. There is no specific treatment, but the disease can be prevented by vaccination (which is advised for all who travel to areas where yellow fever is endemic); recovery from one attack usually confers subsequent immunity.
A viral infection that varies in severity and occurs in two forms. Urban yellow fever is acquired when a person is bitten by a certain species of mosquito that has become infected by biting an infected person. Jungle yellow fever, also called sylvatic yellow fever, is transmitted by mosquitoes that have fed on infected wild primates. The infection is found mostly in central Africa and in tropical areas of South America. The illness can be very mild with symptoms limited to fever and headache within 48 hours of infection, or it can be severe or fatal. Although the infection occurs rarely in travelers, visitors must meet requirements for vaccination against yellow fever before entering countries where it is endemic, such as India.
An infectious disease, caused by an arbovirus, occurring in tropical Africa and the northern regions of South America. It is transmitted by mosquitoes, principally Aedes aegypti. The virus causes degeneration of the tissues of the liver and kidneys. Symptoms, depending on severity of infection, include chills, headache, pains in the back and limbs, fever, vomiting, constipation, a reduced flow of urine (which contains high levels of albumin), and jaundice. Yellow fever often proves fatal, but recovery from a first attack confers subsequent immunity. The disease can be prevented by vaccination.
An acute arbovirus infection transmitted from animals to humans by various species of forest mosquito (jungle/sylvan yellow fever), and from human to human by Aedes aegypti (urban yellow fever). It is endemic in much of tropical Africa and Central and South America. In the urban cycle, humans constitute the reservoir of infection, and in the jungle/sylvan variety, mammals especially subhuman primates are involved in transmission. Historically, yellow fever was enormously important, causing devastating epidemics; it also carried a high mortality rate in travellers and explorers. Differentiation from other infections associated with jaundice was often impossible.