Syphilis has been infecting people for centuries, and many researchers have tried to pinpoint the part of the world where the bacterium that causes the disease first appeared. Despite all efforts however, the origin of syphilis remains an enigma.
via LiveScience.com http://www.livescience.com/40885-syphilis-origin-mystery.html
via LiveScience.com http://www.livescience.com/40885-syphilis-origin-mystery.html
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