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US President Donald Trump has cancelled the Republican party convention in Florida, citing the coronavirus "flare-up" as US cases passed four million.

"It's not the right time for that," he said, adding that he would still give a convention speech in a different form.

Florida - a state crucial to the president's re-election hopes - is behind only California and New York in total cases.

As well as passing four million confirmed cases on Thursday, the US has recorded more than 144,000 deaths from Covid-19.

Opinion polls suggest Mr Trump is facing an uphill battle for a second term in office amid criticism of his handling of the pandemic

Does it matter if you wear your face mask wrong? Well, yes.

Wearing a face mask incorrectly can actually make it easier for the virus to spread. Here's the correct way to wear your homemade mask or face covering:

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Face coverings are now compulsory for customers in shops in England, after new coronavirus rules came into force within 12 hours of the government issuing guidance, external on the change.

Coverings are mandatory in enclosed public spaces such as supermarkets, indoor shopping centres, transport hubs, banks and takeaways.

Police can hand out fines of up to £100 ($127) to those who do not comply.

But some retailers have insisted they will not enforce the rule.

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The World Health Organization (WHO) has slammed "unacceptable" remarks by US Secretary of State Mike Pompeo, who had earlier said the global health body had been "co-opted by China".

The WHO's director-general Tedros Adhanom Ghebyreyesus said the allegations were "untrue and unacceptable and without any foundation".

He added that they would not be "distracted by these comments".

The WHO has been a frequent target of criticism by the US administration, with US President Trump accusing it of failing to hold Beijing to account over the pandemic.

Trump said earlier in May that China had "total control over the World Health Organization".

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Former UK Prime Minister Tony Blair has said Britons need to learn to live with the virus, saying it would not be eliminated.

In an interview with the Press Association, the former Labour leader said there was "at least a 50/50 chance" that the UK would see a resurgence of Covid-19 in the autumn, and it was "absolutely essential" to prepare for it.

He urged the government to "put in place every single last bit of containment infrastructure that you possibly can to make sure that if that happens you are able to control the disease, because you're not going to be able to go back into the lockdown that we endured in March, April and May".

A new report by his think tank, the Tony Blair Institute, also recommended the roll-out of mass testing and compulsory use of face masks, external in all enclosed public environments.

Mr Blair said: "If you're only testing the people with symptoms... you are missing asymptomatic people and you are missing pre-symptomatic people.

"And often part of the biggest problem with the disease are pre-symptomatic people."

Hello and welcome back to our rolling coverage of the coronavirus outbreak. As another week draws to an end, here's a quick look at key developments over the last few hours:

• Former UK Prime Minister Tony Blair says he does not believe the virus will be eliminated, saying Britons must simply "learn to live with it"
• It comes as new rules begin in England, making it compulsory to wear face coverings in shops
• In the US, more than four million people have now been infected with Covid-19
• It comes as US President Donald Trump has cancelled next month's Republican party convention in Florida, saying "it's not the right time for that"
• Globally, more than 15 million people have been infected with the virus, with over 632,000 deaths

Stay with us for all the latest updates - reports from our correspondents on the ground, expert analysis, and your reaction from around the world.