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The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.