Barreiro and colleagues discovered that Black Death survivors in London and Denmark had genes that safeguarded them from the plague pathogen. However, Black Death altered human genome 700 years later.
The Black Death, which ravaged through North Africa, Europe, and Asia 700 years ago, constituted one of the biggest mortality events in human history, eradicating 30–60% of the world's population.
The ancient dead had a secret, according to recently published findings in the medical jour...
