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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.
A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
On average, the stomach produces 2 L of hydrochloric acid per day.
The horizontal fraction bar was introduced by the Arabs.