One of the world’s oldest diseases has an even more complex history than expected. Research out today reveals that a form of ...

"With our genetic analysis we were able to identify red squirrels as the first ancient animal host of leprosy," says senior author Verena Schuenemann of the University of Basel in Switzerland.

Previous research had found leprosy in modern red squirrels, and genetic analysis suggested the strain was closely related to leprosy found in medieval humans. Don Hooper / Loop Images / Universal ...

Leprosy may have spread between red squirrels and humans in medieval England, research suggests. Evidence gathered from two archaeological sites in Winchester suggest red squirrels may have been a ...

Leprosy may have spread between red squirrels and humans between 10th and 11th century in England, research suggests. Evidence gathered from two archaeological sites in the medieval city of ...

Leprosy may have spread between red squirrels and humans between 10th and 11th century in England, research suggests. Evidence gathered from two archaeological sites in the medieval city of Winchester ...