This follows laboratory tests which proved it to be 85 per cent effective in combating the disease. The drug, derived from the bark of the African bush willow tree, has been shown to work by ...

A laborer scrapes the bark from a cinchona tree. The bark is then sundried and ... chemical compound to successfully treat an infectious disease. To this day, quinine-based anti-malarials are ...

The spread of Banana Panama Disease is facilitated by contaminated soil, water, infected plant material, and human activities ... chestnut trees. The fungus invades the bark of chestnut trees ...