Joe Biden has tested positive for Covid-19 for a second time, his doctor has said.
In a 30 July memo, the physician to the president, Dr Kevin O’Connor wrote that “as described last week, acknowledging the potential for so-called ‘rebound’ COVID positivity observed in a small percentage of patients treated with PAXLOVID, the President increased his testing cadence, both to protect people around him and to assure early detection of any return of viral replication”.
