Scientists who study tuberculosis have long debated its origins. New research shows that tuberculosis likely spread from humans in Africa to seals and sea lions that brought the disease to South America and transmitted it to Native people there before Europeans landed on the continent.
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/0...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/0...