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- Paul Ehrlich
- developed an
- immmunization
- against diphtheria
- using antibodies
- produced by
- animals infected
- with the disease.
- But his great
- breakthrough
- flowed from
- research with
- colored dyes,
- which he had
- used while
- studying the
- composition of
- blood. Dyes, he
- found, can stain
- bacteria
- #
- Ehrlich called a
- scientifically
- developed drug a
- "magic bullet"
- because it seeks
- out its own target
- disease and can
- then destroy it
- without harming
- the patient's
- healthy cells.
- Salvarsan was a
- magic bullet for
- syphilis; similarly,
- other drugs are
- designed only to
- attack particular
- targets
- #
- Before Ehrlich's
- work, drug
- treatment was
- haphazard, and
- even remedies
- that worked
- (such as quinine
- for malaria) were
- not understood.
- Ehrlich coined
- the word
- "chemotherapy"
- to describe his
- scientific method
- of creating drugs
- against specific
- diseases. His
- research remains
- at the heart of
- modern medicine
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