A statement from Pfizer said that it can take seven days for protection from the second dose to kick in. However, the statement from Lynch’s office said the congressman received the second dose vaccine before attending President Joe Biden’s inauguration on Jan. 20, nine days before his positive test.

Lynch, who represents the state’s 8th Congressional District, also tested negative for COVID-19 prior to the inauguration.

“While Mr. Lynch remains asymptomatic and feels fine, he will self-quarantine and will vote by proxy in Congress during the coming week,” Molly Rose Tarpey, Lynch’s communications director, said in a statement.