Walmart and Kroger are among several large grocery retailers announcing plans to install plexiglass barriers to help protect cashiers and customers from coronavirus infection.

Walmart said the “sneeze guards” should be installed within 2 to 3 weeks. In addition, retailers are installing floor signs to remind customers to keep distance between themselves and others in the stores.

Grocery stores have seen their business soar as authorities urge people only to go out for essentials, prompting them to stay and cook more at home. The stores have been extremely busy and been forced to close earlier to give workers more time to clean and restock as products fly off the shelves.

The Associated Press contributed to this article.