According to legend, the first European to be cured of malaria was the countess of Chinchớn, wife of the Spanish viceroy in Peru. As each wave of fever and chills brought her closer to death, the anguished count pleaded with the court physician to save her.
But in 1638 the doctor’s sole recourse was bloodletting, which only weakened his patient further. As a last resort, he turned to the medicine of the local Indians, who treated fevers with a portion made from the bark of a tree that grew on the eastern slopes of the Andes Mountains.

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Diseases are caused by the presence of bacteria or viruses in the body. The symptoms may be due to the antigen or foreign proteins of the bacteria or the toxic chemicals produced by the bacteria. Recovery from the disease followed by immunity depends mainly on the production of antibodies in the blood. Antibodies are proteins released into the blood which destroy kills or rids the body of these disease causing microorganisms different ways..