On the heels of a real pandemic, the new HBO drama "The Last of Us" is turning heads in its display of a post-apocalyptic America after a fungal infection spreads rampantly amongst humans. It’s led many to wonder whether it is rooted in reality. Is the killer Cordyceps fungus real, and could it ever threaten humans? We took viewers' questions to the experts. MORE: https://www.cbs8.com/article/news/local/outreach/earth8/is-the-cordyceps-fungus-in-the-last-of-us-a-threat-to-humans/509-687441d4-7ad8-4f1a-9711-5559980ad841