Tennessee's 'patient zero,' a Biogen employee, comes forward to discuss 'hysteria' and 'human kindness at its very best'

In Tennessee, the state's self-described “patient zero” has decided to come forward and share his experience. Like others, 44-year-old Chris Baumgartner has witnessed “mass hysteria” in recent weeks, but he’s also seen “human kindness at its very best,” he wrote in a Facebook post.