Walgreens Boots Alliance and CVS Health both said on Friday that they had to temporarily close several shops owing to staffing concerns created by the recent COVID-19 outbreak.

The store closures on one or both weekends are temporary, according to CVS, and are caused by the fast-spreading Omicron coronavirus type as well as a statewide staffing shortage.

In an emailed response, CVS stated, "The changed operation hours in these stores are temporary."Omicron Risks Infecting Vaccinated People but May Not Cause Them Severe Illness - WSJ

Due to an increase in illnesses caused by the Omicron coronavirus variety, U.S. department shops and drugstore chains, including Walmart and Macy's, have been compelled to cut working hours or close stores.

A Walgreens representative claimed the closures affect fewer than 1% of the company's approximately 9,000 locations in an emailed statement on Friday.

"It's on an extremely limited, case-by-case basis, and it's not particular to any region or area," the spokesman said, adding that "we make every effort to staff and maintain pharmacy available for our patients in the community."

Walgreens said it was attempting to rapidly deploy additional employees to any affected locations.