All Fox News employees were instructed this week to disclose their COVID-19 vaccination status to the company, a requirement that flies in the face of public remarks previously made by the networks conservative hosts including Tucker Carlson , who has argued that asking about someones vaccination status is as invasive as asking about their favorite sex positions.

In a memo to staff, Fox News Media told all of its employees to record their vaccination status on an employee management website by close of business Tuesday. All workers must participate, the memo says, whether they work on-site or remotely.

These safety measures reflect the recent rise in COVID cases nationwide and the spread of the Delta variant, says the memo, which was first reported on by Adweek .