Hey shoppers, don't forget your mask.

Starting Monday, some of the nation's biggest stores are requiring customers to wear one.

That includes Walmart, Sam's Club, CVS and Walgreens.

Executives at Walmart and Sam's Club say they are following guidance from health officials to help protect people's health.

To help control coronavirus, the CDC recommends people wear cloth face coverings in public settings, and when around those outside your household.

Other retailers have also announced upcoming mask mandates, including Kroger, Target, Home Depot and Lowe's.