The department is asking people to download the COVID Alert PA phone app if they do test positive to anonymously alert people they may have come in contact with.
Thousands attended the outdoor rally, held hours after the president introduced his Supreme Court nominee, Amy Coney Barrett, from the Rose Garden at the White House. Those at the rally were required to pass through a security checkpoint and get their temperatures taken.
Trump announced earlier Friday that he and the first lady have tested positive for the coronavirus.
Joe Biden is moving forward with plans to travel to Michigan on Friday after he and his wife, Jill, tested negative for the coronavirus.
The Democratic presidential nominee had planned on traveling to Grand Rapids, Michigan, to talk about the economy on Friday morning. His trip was delayed by several hours as he awaited the test results.
He was tested for the virus after attending Tuesday’s debate with President Donald Trump. The president said early Friday that he and his wife, Melania Trump, tested positive for coronavirus.
Biden spent much of the spring and early summer close to his Wilmington, Delaware, home to prevent the spread of the coronavirus. But he’s stepped up his travel in the final stretch of the campaign, while still taking heed of public health guidelines.