More than 940,000 have died with Covid-19 since the outbreak began in China late last year.
The US, India and Brazil have the most confirmed cases, but there is a renewed spike in infections across Europe.
Many northern hemisphere countries are now bracing for a second wave of the pandemic as winter approaches.
In the UK, the government is considering taking further England-wide measures including a short period of restrictions to try to slow a second surge of infections.
Outside Europe, Israel brings in a second nationwide lockdown later on Friday – the first nation to do so.
Africa has recorded more than a million confirmed cases, although the true extent of the pandemic in the continent is not known. Testing rates are reported to be low, which could distort official figures.
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