Retiring Ohio Senator Rob Portman has confirmed he’s tested positive for Covid-19 before he was scheduled to return to Washington, D.C.

The Hill reports:

“In preparation for returning to Washington, DC, I took an at-home COVID test last night and it was positive. I am asymptomatic and feel fine. I have been in contact with the Attending Physician and my personal doctor,” Portman said in a statement.

“I am following their medical advice and following CDC guidelines and isolating for the recommended five days. I will work remotely from home this week, but will not be able to be in Washington, DC for votes,” he added.

Portman revealed in November 2020 that he was participating in a COVID-19 phase three vaccine clinical trial being developed by Johnson & Johnson.

Since then, he has been a vocal advocate for vaccines. In July he wrote on Twitter “If you haven’t been vaccinated, I strongly encourage you to get your shot,” adding, “It could save your life!”