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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

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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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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

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Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

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