Leprosy is one of the oldest human diseases and originated in Eurasia or Africa. A new study has found a different species of leprosy-causing bacteria existed in the Americas before European ...

Scientists say a species of bacteria rewrites the history of when an infectious and potentially deadly disease first arrived in the Americas. And it was long before the arrival of European explorers.

Christopher Columbus and other early European explorers were best known for the “new” lands they discovered and the people ...

Approximately 1000 men traveled to the New World with Christopher Columbus on his second transcontinental crossing in 1493.