SEATTLE — What if the Everything Store couldn’t sell everything because of disruptions from the coronavirus?

That’s the situation that Amazon — which typically stocks more than 100 million items, from toilet paper to yoga pants — is working to avoid as the deadly outbreak continues to shut down and slow factories in China that produce the world’s goods.

Over the past few weeks, Amazon has responded to the crisis by making larger and more frequent orders of Chinese-made products that had already been shipped to the United States, according to company emails and consultants who work with major brands. Some of its suppliers have cut back on advertising and promotions on the site so they don’t run out of products too quickly.

Amazon also sent an urgent email to brands on Wednesday about Prime Day, its midsummer mega sale, indicating that it has begun worrying about inventory for the event. And the company has contacted some of its third-party merchants, whose dog leashes, crayons and other products account for about 60 percent of its sales, to figure out how their flow of goods might be impeded.