Representative Stephen F. Lynch of Massachusetts has tested positive for Covid-19, his office said. The lawmaker received his second shot of the Pfizer vaccine before Joe Biden’s inauguration.

The 65-year-old tested positive on Friday, his office said. A staff member in his Boston office tested positive for Covid-19 earlier this week, spokesperson Molly Rose Tarpey added.

Lynch “had received the second dose of the Pfizer vaccine and subsequently received a negative Covid-19 test prior to attending President Biden’s Inauguration,” on January 20, the statement added, without specifying the date. Lynch has not developed any symptoms and feels fine, but will remain in self-quarantine, voting in Congress by proxy.