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The outbreak of yellow fever in Barcelona in 1821. The evolutionary origins of yellow fever are most likely African. [1] [2] Phylogenetic analyses indicate that the virus originated from East or Central Africa, with transmission between primates and humans, and spread from there to West Africa. [3]
Yellow fever is caused by yellow fever virus (YFV), an enveloped RNA virus 40–50 nm in width, the type species and namesake of the family Flaviviridae. [10] It was the first illness shown to be transmissible by filtered human serum and transmitted by mosquitoes, by American doctor Walter Reed around 1900. [32]
During the 1793 yellow fever epidemic in Philadelphia, 5,000 or more people were listed in the register of deaths between August 1st and November 9th. The vast majority of them died of yellow fever, making the epidemic in the city of 50,000 people one of the most severe in United States history. By the end of September, 20,000 people had fled ...
The 1853 yellow fever epidemic of the Gulf of Mexico and Caribbean islands resulted in thousands of fatalities. Over 9,000 people died of yellow fever in New Orleans alone, [ 1 ] around eight percent of the total population. [ 2 ]
Experts are now concerned that yellow fever — which hasn’t had a major outbreak in the U.S. since 1905, when it killed 900 people in New Orleans — could make a comeback as well. What’s ...
The entire Mississippi River Valley from St. Louis south was affected, and tens of thousands fled the stricken cities of New Orleans, Vicksburg, and Memphis.The epidemic in the Lower Mississippi Valley also greatly affected trade in the region, with orders of steamboats to be tied up in order to reduce the amount of travel along the Mississippi River, railroad lines were halted, and all the ...
1986 Oju yellow fever epidemic 1986 Oju, Nigeria: Yellow fever: 5,600+ [216] 1987 Mali yellow fever epidemic 1987 Mali: Yellow fever: 145 [217] 1988 Shanghai hepatitis A epidemic 1988 Shanghai, China Hepatitis A: 31–47 [218] [219] [220] 1991 Bangladesh cholera epidemic 1991 Bangladesh: Cholera: 8,410–9,432 [221] 1991 Latin America cholera ...
At least 258 people have been killed and there have been around 1,975 suspected cases of the mosquito-borne disease since December 2015.