A Massachusetts congressman who received both doses of the Pfizer coronavirus vaccine tested positive for the virus on Friday.
Democratic Rep. Stephen Lynch has given negative results before attending the inauguration of President Joe Biden on January 20th. He was tested again after a staff member in his Boston office received the virus earlier this week.
Pfizer said it could take seven days to protect itself from the second dose, NBC 10 reported in Boston. Lynch’s office said it received the second dose of vaccine before opening on Jan. 20, nine days before its positive test.
The Pfizer vaccine has been considered to be 95% effective against the virus, although it has not been tested against mutations from the UK and South Africa.
In his statement, his office said Lynch has no symptoms of COVID-19. He will self-quarantine and vote by proxy in Congress next week.
Lynch was the second Democrat from the Massachusetts Congress to give positive results in as many days. Representative Lori Trahan said on Thursday that she gave positive results after repeatedly testing negative.