US presidential candidate Joe Biden's running mate Kamala Harris suspended travel on Thursday after her communications director tested positive for Covid-19, the campaign said, adding that Harris had not come into "close contact" with the staffer.
A non-staff flight crew member also tested positive, campaign manager Jen O'Malley Dillon said in a statement.
Harris did not need to quarantine, O'Malley Dillon added, but "out of an abundance of caution" would cancel travel and campaign virtually before hitting the road again on October 19.