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evil spirts
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Prayer, exorcisms,blood letting
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Accurate health records, morphine, quinine
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health records were superstitious and called upon the gods.
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development of acupuncture they learned to treat a lot of illness and disease with stone tools.
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illness was caused by nature more then spiritual.
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sanitation systems this was disease was caused by lack of sanitation.
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turned religious.
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vaccines and medications
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caused millions of deaths during the period
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universities and medical schools for research