What's So Scary About Valley Fever?

In general, if you're fairly healthy and you don't have to be freaked out about getting deathly sick from a fungus today, it's very, very unlikely. But that comforting fact could radically change obviously with future mutations. It wouldn't take an unrealistically dramatic change to become the horror that the Spanish flu was a century ago or worse. Global warming can indeed act as a selective pressure for a whole host of fungi that to suddenly start finding a new home in human hosts.