More than 46,000 people have now died from Covid-19 around the world, and the number of cases has surpassed 900,000.
However 189,000 patients have recovered.
The US has by far the largest number of confirmed cases at over 200,000 - 4,500 there have died.
Meanwhile the UK yesterday recorded 563 deaths - its highest to date.
In a video posted online from his self-isolation, British Prime Minister Johnson promised to massively increase the number of tests being carried out for the virus.
"I want to say a special word about testing because it is as so important.
"As I have said for weeks and weeks this is the way through.
"This is how we will unlock the coronavirus puzzle - this is how we will defeat it in the end."
