When Europeans came to the Americas, they brought some nasty diseases — smallpox, cholera and typhus, to name a few.But one pathogen was already there. And it likely traveled to the shores of South America in a surprising vessel.By analyzing DNA from 1,000-year-old mummies, scientists have found evidence that sea lions and seals were the first to bring tuberculosis to the New World. The sea animals likely infected people living along the coast of Peru and northern Chile, a team from the University of Tubingen in Germany reported Wednesday in the journal Nature."We weren't expecting to find a connection to...
