Democratic vice presidential candidate Kamala Harris is cancelling travel until next week after two people involved in the campaign tested positive for the coronavirus, the campaign says.
The decision was made "out of an abundance of caution and in line with our campaign's commitment to the highest levels of precaution," the statement said on Thursday.
Harris was not required to quarantine as she was not in close contact with the two people in the two days prior to their diagnosis, the campaign said, citing guidelines by the US health agency, the Centers for Disease Control and Prevention (CDC).
"I've had 2 negative tests this week and am not showing symptoms," Harris tweeted.
"Both the crew member and the staff member were wearing N95 masks at all points they were near me, and our doctors believe that we were not exposed under CDC guidelines," she wrote.
The team learned late on Wednesday that Harris' communications director Liz Allen and a flight crew member had tested positive.
Neither of those people have had recent contact with Democratic presidential candidate Joe Biden or any staffers, according to the campaign.
Harris will continue campaigning through online events.