"Example is the school of mankind, and they will learn at no other." – Edmund Burke

Syphilis has been around at least since Europeans arrived in the Western Hemisphere. It’s a sexually transmitted disease caused by Treponema pallidum, a member of a group of corkscrew-shaped bacteria called spirochetes. Sometimes it causes no symptoms at all, but typically it initially causes a painless sore on the mouth or genitals. Later it can cause a rash. Untrea...