Walmart Inc. will start taking temperatures of U.S. store workers at the start of each shift and offering masks for those employees who wish to wear them, the company said Tuesday.

“We are in the process of sending infrared thermometers to all locations, which could take up to three weeks,” the company said in a blog post. Employees with a temperature of 100 degrees or higher will be sent home with pay and will be unable to return until fever free for three days.

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