
Before Columbus: A 4,000-Year-Old Skeleton Reveals a Rare Leprosy Strain in the Americas
Skeleton that yielded a 4000-year-old M. lepromatosis genome. Credit: © Oscar Eduardo Fontana-Silva & Anna Brizuela Scientists have decoded the genetic blueprints of a rare leprosy bacterium preserved in 4,000-year-old Chilean skeletons, opening a …