Grocery stores are continually changing — from shopping hours to cleaning efforts — to help prevent the spread of coronavirus.

Starting this week Kroger, Sam's Club and Walmart stores are installing plexiglass partitions at registers and checkout lines nationwide over the next 2-3 weeks this week. These barriers separate customers from cashiers and are meant to block sneezes.

The sneeze guards are also being installed at pharmacy counters and Starbucks counters at stores that have them.

To promote social distancing stores will have floor decals as a reminder to help make it easier for people to judge staying six-feet apart.

Stores are also stepping up efforts to clean and sanitize carts. Walmart said they are using a sprayer kit to quickly and thoroughly sanitize carts.

Meijer is asking customers limit use of reusable bags only for Shop & Scan orders. Single-use, plastic bags bags are still available. Meijer stores also have visual guides on floors near checkout lanes to remind people to stay six feet apart from other customers.

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Contact food writer Susan Selasky at 313-222-6872 or sselasky@freepress.com. Follow @SusanMariecooks on Twitter.