At first, it was mostly countries who figured the coronavirus was poised to become endemic. Now companies are at it too.

Roche Holding AG, one of the world’s biggest makers of diagnostic tests, said Thursday that COVID-19 will probably start to wane next quarter, meaning demand for its testing kits will taper off. Siemens Healthineers AG, a smaller rival lifted by the current testing boom, also pointed to a likely slowdown later this year. And Quest Diagnostics Inc. said it expects slipping test sales this year as the world adjusts to the virus’s long-term presence.

"We believe that the positive signs, which we see on the horizon, are real,” Roche CEO Severin Schwan said about the virus’s trajectory.