yellow fever

Yellow fever is probably the most lethal of all the arboviruses. It is caused by a flavivirus that is transmitted by the Haemogogus mosquitoes and several different species of the Aedes mosquito. Although it has occurred in areas extending from Mexico to Argentina, most cases of yellow fever are in Africa and Central and South. The symptoms of yellow fever appear 3 - 6 days after exposure, and include fever, nausea, shivers, vomiting, flushed face, constipation, stomach …

…mosquito transmitted the disease. There is no specific treatment for yellow fever, but prevention and control of epidemics can be achieved by use of the live 17D vaccine. This vaccine is one of the most successful vaccines known to medicine. It has a very low incidence of clinical reactions, and confers long lasting and possibly lifetime immunity. Mosquito avoidance and control can also prevent yellow fever. Also, recovery from yellow fever gives a lifelong immunity.