"contagious"

Doug Ford, premier of Canada's most populous province of Ontario, announced on Tuesday that his government is considering additional restrictions to combat a surge in Covid-19 cases

The researchers noted that the mutation, called D614G, is located in the spike protein that pries open our cells for viral entry.

Tests showed there was "no longer evidence of actively replicating virus," and that Trump's viral load was "decreasing".

Trump was eager to return to the campaign trail, telling aides that he wanted a series of mega rallies in Republican-friendly areas in battleground states to mark his recovery.