The coronavirus pandemic is "not even close to being over", the WHO warned Monday, as the global death toll passed half a million and cases surged in Latin America and the United States.

In another grim milestone, the number of infections recorded worldwide topped 10 million, while some authorities reimposed lockdown measures that have crippled the economies worldwide.

Madrid rally
Thousands rally in Madrid for 'social reconstruction' in Spain Photo: AFPTV / Rebeca MAYORGA

"We all want this to be over. We all want to get on with our lives," World Health Organization chief Tedros Adhanom Ghebreyesus said.

"But the hard reality is this is not even close to being over," he said, adding that "although many countries have made some progress, globally the pandemic is actually speeding up."

USA coronavirus cases
The United States has recorded over 2.5 million virus cases Photo: AFP / TIMOTHY A. CLARY

The virus emerged at least six months ago in China, where the WHO will send a team next week in the search for its origin, Tedros said.

COVID-19 is still rampaging across the US, which has recorded more than 125,000 deaths and 2.5 million cases -- both around a quarter of the global totals.

Coronavirus cases
Coronavirus: nearly 500,000 dead and more than 10 million cases Photo: AFP / Simon MALFATTO

US Federal Reserve Chairman Jerome Powell said the April-June quarter was expected to see the largest decline in GDP on record, adding that recovery would depend on government efforts to contain the outbreak.

Many of the south and west US states where the virus is most rampant are where state leaders pushed for early reopenings.

Pride March Mexico City
A lone reveller flutters a rainbow flag during a Pride march in Mexico City but most of the celebrations were online Photo: AFP / PEDRO PARDO

But even in New York, deemed to be in good health comparatively, the iconic Broadway theatre district announced it would remain closed through the end of the year.

And with numerous US states forced to reimpose restrictions on restaurants, bars and beaches, President Donald Trump has come under growing pressure to set an example by wearing a mask.

Honduras coronavirus crisis
Honduras has been overwhelmed by deaths caused by COVID-19 and the large number of people infected that are admitted every day in hospitals across the country Photo: AFP / ORLANDO SIERRA

Trump's health secretary has warned the "window is closing" for the US to regain control, but the president has largely turned away from the crisis, holding indoor rallies with big, largely maskless crowds against the advice of his experts and refusing to cover his own face in public.

Covid-19 victims
A relative of a victim of COVID-19 gestures as she takes part in a protest at the site of a common grave near Iquitos, Peru, on June 27, 2020 Photo: AFP / Cesar Von BANCELS

And while opposition Democrats have urged Trump to reissue an emergency declaration on coronavirus, White House Press Secretary Kayleigh McEnany said the president had "no interest" in doing so.

Texas Bars
Texas governor Greg Abbott said he had allowed bars to reopen too soon Photo: AFP / Sergio FLORES

However, he may not be able to avoid masks forever -- the Florida city of Jacksonville, where Trump's Republicans are due to hold their national convention in August, declared face masks mandatory on Monday.

Underlining Trump's increasing isolation on the issue, Senate Majority Leader Mitch- McConnell, who is usually in lock step with the president, spoke out on the urgency of mask-wearing.

PPE for sale
A woman stands next to protective suits designed for “cholitas” (indigenous women who wear typical skirts) outside a store in La Paz, Bolivia Photo: AFP / AIZAR RALDES

"We must have no stigma, none, about wearing masks when we leave our homes and come near other people," he said.

"Wearing simple face coverings is not about protecting ourselves, it is about protecting everyone we encounter."

People visit Old Spitalfields Market in London as Britian's Prime Minister Boris Johnson pledges to spend billions on infrastructure to revive the economy Photo: AFP / DANIEL LEAL-OLIVAS

The second hardest-hit country Brazil registered 259,105 infections in the seven days through Sunday -- the country's highest of any week during the pandemic.

Ireland's pubs began pouring pints for the first time in 15 weeks, as Europe -- still the hardest-hit continent -- continues to open up after seeing numbers of new cases fall.

"Guinness is good for you," quipped Mark O'Mahony -- the first to order a pint with his breakfast at a Dublin pub. "Without it, it hasn't been much good really for 15 weeks.

In Britain, Prime Minister Boris Johnson said his country had gone through a "profound shock" as he prepared to unveil a large stimulus programme.

His government plans to reopen pubs, restaurants and hairdressers across England on July 4, but on Monday ordered schools and non-essential shops in Leicester, central England, to close after a localised outbreak.

Meanwhile, German Chancellor Angela Merkel and French President Emmanuel Macron called for a "strong" and "efficient" recovery fund for the European Union.

In Merkel's Germany, which has been praised for how it has tackled its COVID-19 outbreak, the North Rhine-Westphalia state extended a lockdown on a district hit hard by a slaughterhouse outbreak.

In neighbouring Switzerland, organisers said that 2021's Geneva International Motor Show was cancelled, after already scrapping this year's event.

China has imposed a strict lockdown on nearly half a million people in a province surrounding Beijing to contain a fresh cluster.

In a reminder of the constant threat of newly-emerged pathogens, researchers in Chinese universities and the country's Center for Disease Control and Prevention announced they had discovered a novel swine flu that was capable of triggering another pandemic.

Named G4, it is genetically descended from the H1N1 strain that caused a pandemic in 2009.

It possesses "all the essential hallmarks of being highly adapted to infect humans," said the authors of a study published Monday in the US science journal PNAS.

The Middle East's most affected country Iran reported 162 more deaths on Monday, its highest single-day toll yet, a day after it also made mask-wearing mandatory for inside gatherings.

Alka, one of the country's million accredited social health activists, said it was difficult for the unprotected and poorly paid all-women workers to get people to heed their advice.

"People are struggling to feed their families," she said. "What can we do?"

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