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Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.
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Medication errors are three times higher among children and infants than with adults.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.