US President Donald Trump is no longer a Covid transmission risk to others.
White House physician Sean Conley’s memo is the first update on Mr Trump’s health since Thursday.
Earlier on Saturday, the President delivered a speech in front of cheering supporters at the White House in his first public appearance since being taken to hospital with the virus.
There had been concerns that he might still be contagious following his three-day hospital stay.
The doctor’s memo said the latest tests on the President revealed there was no longer evidence of actively replicating virus, and that his viral load was decreasing.