Biden’s campaign issued a statement late Thursday morning, saying he has not come into contact with any of the individuals who tested positive.
Harris and Biden spent several hours together that day through multiple campaign stops, private meetings and a joint appearance in front of reporters at an airport. They were masked at all times in public, and aides said they were masked in private, as well.
Biden’s last announced negative test was Tuesday. He is scheduled to attend an ABC News town hall airing live at 8 p.m. EDT Thursday in Philadelphia.