Bos led a recent study, which discovered that an ancient strain of tuberculosis (TB) migrated to the New World by infected sea lions and seals. The research team from the University of Tübingen, examined thousands of skeletons for TB, and were able to extract (TB) DNA from three skeletons uncovered in southern Peru. It was determined that the remains were buried 1,000 years ago, before the arrival of Europeans to the New World. The researchers also established that the ancient TB was different from modern tuberculosis bacterium.
