International Business Machines Corp (IBM.N) said on Friday that it would permit just completely immunized U.S. representatives to get back to offices, which are set to open from Sept. 7, given the quick spread of the Delta variation of COVID-19.

“We will still open many of our U.S. sites, where local clinical conditions allow, the week of Sept. 7. However, the reopenings will only be for fully vaccinated employees who choose to come into the office,” Chief Human Resources Officer Nickle LaMoreaux said in a memo sent to employees.

The resurgence of COVID-19 cases in the United States because of the Delta variation and the new direction from the U.S. Communities for Disease Control and Prevention (CDC) that requires completely inoculated people to wear covers have driven organizations to change their arrangements on get back to office, immunizations and veiling.

The innovation firm additionally requested that its workers get completely immunized, joining other huge specialists to battle the spread of the infection.

Prior on Thursday, Facebook Inc (FB.O) has pushed back its office return date for all U.S. also, some global representatives until January 2022, while AT&T Inc (T.N) said it will require the management employees to be immunized prior to entering a work location.