Uber and Google are latest among tech firms to delay reopening as Delta variant spreads

The companies also announced a vaccine mandate for all employees who will eventually return to offices

Major tech firms are reversing plans to return to in-office work in coming weeks, as Covid cases in the US rise due to the emergence of a highly transmissible variant of the virus.

Uber, Twitter, Google, Apple and Netflix have delayed planned returns to in-person work recently, while other companies have announced employees can continue remote working indefinitely. The changes come amid the spread of the Delta variant, which now accounts for more than 80% of new coronavirus cases in the US.