In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Medication errors are three times higher among children and infants than with adults.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
