Top 10 Deadly Diseases Cured in the 20th Century

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8. Yellow Fever

Estimated death toll: 2,000,000-3,000,000

In 6 most notable yellow fever epidemics of the 18th and 19th century between 50,000 and 100,000 people died. Even today, yellow fever kills about 30,000 people annually. The death toll doesn’t include Mayans who were exposed to the diseases by the Spanish conquistadors in 1600s. The first vaccine for yellow fever was discovered in 1937 by Max Teller.

Top 10 Deadly Diseases Cured in the 20th Century Yellow Fever

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