KEY POINTS
  • Some Amazon sellers say their inventory is running low and factory closures in China mean they may not be able to restock products.
  • If products run out, sellers say Amazon's ranking algorithms may demote their listings from search results.
  • Amazon has sent notices out to sellers advising them on how to protect their business during the coronavirus outbreak.
A woman wears a masks in Chinatown following the outbreak of the novel coronavirus, in Chicago, Illinois, U.S. January 30, 2020.

For Zev Bernard, who sells baseball and softball equipment on Amazon, February tends to be one of the busiest times of the year, with athletes, coaches and fans gearing up for the new season. Opening day for Major League Baseball is in late March.

But with the rapid spreading of the coronavirus, third-party sellers like Bernard are in jeopardy of losing big business. Many factories in China, the epicenter of the coronavirus, remain closed due to mass quarantines. That's disrupted the supply chains of companies around the world, including merchants who sell on Amazon's marketplace, which accounts for more than half of the company's retail volume.