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Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
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Vaccines prevent between 2.5 and 4 million deaths every year.

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There are 20 feet of blood vessels in each square inch of human skin.

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The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

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