Fully-vaccinated Pennsylvania Rep. Glenn Thompson announced he tested positive for COVID-19 on Friday afternoon and was admitted to Walter Reed.
Thompson, 62, made the announcement on Twitter and said that he had been experiencing cold-like symptoms which prompted a COVID test for him.
The Republican lawmaker was taken to the Walter Reed National Military Medical Center to treat his symptoms in the 'breakthrough' case.
He is one of at least eight House Representatives that has tested positive for the virus since early August.
Fully-vaccinated Pennsylvania Rep. Glenn Thompson, 62, announced that he tested positive for COVID-19 on Friday
Thompson released the announcement on his Twitter account and said he got tested after experiencing cold-like symptoms
The Republican lawmaker was admitted to Walter Reed National Military Medical Center for treatment
'Congressman Thompson on Friday afternoon began experiencing cold-like symptoms and was promptly tested for COVID-19', the Twitter statement read.
'While he is vaccinated, the test came back positive. Out of an abundance of caution, he is being treated at Walter Reed National Military Medical Center.
'He is in good spirits and further updates will be made available in the coming days.'
Fellow federal lawmaker Ohio Democratic Rep. Tim Ryan, who is also vaccinated, tested positive a month before.
Following his diagnosis, he urged the public to continue practicing COVID safety guidelines.
'Today, I tested positive for COVID-19. While I'm currently experiencing mild symptoms, I'm grateful to have the protection of a safe and effective vaccine — and I know without it, this illness could be much, much worse,' Ryan said on Twitter.
'What we have learned over the last year and a half is that we are in this together, and I urge all Ohioans to help us crush this pandemic by wearing a mask and getting vaccinated so that we can get back to normal.'
Ohio Rep. Tim Ryan had also tested positive a month ago despite being fully vaccinated
Despite the dozens of lawmakers who have tested positive, House Reps have been required to wear masks following an enforced mandate in July.
The implementation of strict COVID guidelines came after cases began soaring again due to the Delta variant.
A fine of $500 was given to House Rep members that did not comply with the mandate.
In total, 45.3 million COVID cases were reported in the US with about 735,000 deaths.
About 190 million people have been fully vaccinated making up 57 percent of the US population.
In addition, almost 220 million people have received at least one dose making up 66 percent of the population.