Yellow fever and several species of mosquitoes. In cities, it is spread primarily by "Aedes aegypti", a type of mosquito found throughout the tropics and subtropics. The virus is an RNA virus of the genus "Flavivirus". The disease may be difficult to tell apart from other illnesses, especially in the early stages. To confirm a suspected case, blood sample testing with polymerase chain reaction is required. A safe and effective vaccine against yellow fever exists, and some countries require vaccinations for travelers. Other efforts to prevent infection include reducing the population of the transmitting mosquito. In areas where yellow fever is common
Yellow Fever Commission Yellow Fever Commission The Yellow Fever Commission was a research team of the United States Army which researched treatment for yellow fever. The research process itself became a focus of study for later generations. A United States nurse named Clara Maass and two Spanish immigrants were among those who died as a result of their research participation. Researchers mark the research of the Yellow Fever Commission as the origin of the model of modern consent in medical research. The 1934 play "Yellow Jack" told the story of Walter Reed in the Yellow Fever Commission. That play was the basis of