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For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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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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More than 4.4billion prescriptions were dispensed within the United States in 2016.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.