Traders are preparing for the worst as the coronavirus spreads across national borders, stoking fears about its economic impact.

CIVITA DI BAGNOREGIO, Italy - The village is 2,500 years old, perched on a sheer hilltop, rising into the sky like a storybook illustration. A little more than a decade ago, it was on the verge of extinction. It's survived with the help of the world's most powerful tourism force: a flood of Chinese visitors.