Wild animals prized as delicacies in China contain a bevy of threatening viruses

“It’s hard to think of a more effective way to ignite and fan the flames of an epidemic,”

Agriculture seems to easily come to mind. Both in factory farming of things like chickens as well as small scale production where domestic animals come into contact with wild animals. Perhaps wild animal rehabs. I'm sure there are others. Mix any with fast international travel and there's a recipe for a pandemic.