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Did you know?
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
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Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.
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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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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.