Antibiotics books medical books USA
Life
Span
At
the beginning of the 20th century, people in the United
States had an average life span of about 50 years. By
the time the century neared its close, average life
span had risen to 76 years. Other developed countries
experienced similar increases. Much of the credit for
these longer life spans-and for the good health that
accompanies them-is due to the conquering of diseases,
thanks to vaccines, antibiotics, sophisticated surgical
tools, and other medical miracles. The challenges ahead
include bringing the benefits of this medical knowledge
to all peoples of the world, and expanding on current
knowledge in order to understand, treat, and prevent
the diseases that still confront us.
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