TB has human, not animal, origins - says study

The origins of human tuberculosis have been traced back to hunter-gatherer groups in Africa 70,000 years ago, an international team of scientists say. The research goes against common belief that TB originated in animals only 10,000 years ago and spread to humans. via Pocket http://www.bbc.co.uk/news/health-23897670#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa