America can spare a square.

Jittery shoppers across the country are clearing shelves of bathroom tissue as coronavirus keeps people home and threatens to force more Americans into quarantine. But toilet paper—unlike some other high-demand items such as hand sanitizer and face masks—remains plentiful, according to the two biggest manufacturers.

Charmin maker Procter & Gamble Co. and Cottonelle maker Kimberly-Clark Corp. say they have ramped up toilet-paper production and are able to make enough to meet demand. Kimberly-Clark has started posting pictures of warehouses full of toilet paper in some markets. The problem, the manufacturers say, is getting the product shipped to warehouses and retailers, and then onto store shelves, quickly enough to keep up with sales.

The shopping frenzy stirs memories for some of the global financial crisis, which disrupted the market for, among other things, short-term corporate debt.

“This is literally 2008 played out over toilet paper and not commercial paper,” said Justin Wolfers, a University of Michigan professor of economics and public policy. “As long as I believe you are going to run to Costco and buy toilet paper, I’m going to run. And as long as you believe that I am going to run, you are going to run. Both are rational.”