Southern and western regions of the United States were grappling Thursday with a renewed surge of coronavirus infections as the death toll in the world's worst-affected nation passed 150,000.

Brazil is second to the US in terms of cases and fatalities, and also reported a sobering figure as it surpassed 90,000 deaths.

The hajj in Mecca is usually one of the world's largest religious gatherings and last year attracted 2.5 million visitors, but this year a maximum of 10,000 people will take part
The hajj in Mecca is usually one of the world's largest religious gatherings and last year attracted 2.5 million visitors, but this year a maximum of 10,000 people will take part Saudi Ministry of Media / -

Exactly six months after the World Health Organization declared an international emergency over the deadly pathogen, countries around the globe are seeing rises in infections that are damaging economies and forcing disruptive protection measures.

Even nations that believed they had largely curbed the disease are being gripped by worrying second and third-wave resurgences, with Australia on Thursday reporting a record number of new infections and its deadliest day of the pandemic so far.

Selected countries and territories that have recently adopted new measures to slow the spread of COVID-19, as of July 29.
Selected countries and territories that have recently adopted new measures to slow the spread of COVID-19, as of July 29. AFP / Gal ROMA

Despite efforts in place to contain the virus, COVID-19 has killed more than 666,000 people around the world and total infections have passed 17 million, according to an AFP tally.

Global daily cases are now approaching the 300,000 mark, with the curve showing no sign of flattening -- it took just 100 hours for one million new cases to be recorded.

Official figures in India continue to be undercut by studies suggesting a huge proportion of poorer people living in crowded slums have had the disease but have never been tested
Official figures in India continue to be undercut by studies suggesting a huge proportion of poorer people living in crowded slums have had the disease but have never been tested AFP / INDRANIL MUKHERJEE
China saw a three-month high of 101 new virus cases on Wednesday because of a localised outbreak in the northern port city of Dalian
China saw a three-month high of 101 new virus cases on Wednesday because of a localised outbreak in the northern port city of Dalian AFP / STR

Days after Australian authorities expressed hope that a Melbourne lockdown -- now in its third week -- was bringing persistent outbreaks under control, the surge is a potent warning that initial successes in managing COVID-19 can quickly unravel.

Thirteen deaths and 723 positive tests were reported in the southeastern state of Victoria alone, well beyond the previous nationwide record of 549 cases set on Monday.

US Congress leaders conceded they were still far from a deal to support the world's leading economy, which has been brought to its knees by the pandemic and shutdowns
US Congress leaders conceded they were still far from a deal to support the world's leading economy, which has been brought to its knees by the pandemic and shutdowns AFP / VALERIE MACON

Prime Minister Scott Morrison said the steep rise in numbers was "very concerning".

In Hong Kong, where authorities fear a worrying third-wave of infections could cripple the healthcare system, the government reversed a day-old ban on restaurants serving dine-in customers following widespread public anger.

Mask-clad Muslim pilgrims begin the annual hajj, dramatically downsized this year as the Saudi hosts strive to prevent a coronavirus outbreak during the five-day pilgrimage. The hajj, one of the five pillars of Islam and a must for able-bodied Muslims at
Mask-clad Muslim pilgrims begin the annual hajj, dramatically downsized this year as the Saudi hosts strive to prevent a coronavirus outbreak during the five-day pilgrimage. The hajj, one of the five pillars of Islam and a must for able-bodied Muslims at least once in their lifetime, is usually one of the world's largest religious gatherings. AUDIO NETWORK / STRINGER

All restaurants in the city of 7.5 million were ordered to only serve takeaways as part of a raft of ramped-up social distancing measures aimed at combating the fresh wave of virus cases.

But social media was quickly swamped by photos of primarily blue-collar workers forced to eat on pavements and in parks -- and even inside public toilets to escape a torrential downpour.

China saw a three-month high of 101 new virus cases on Wednesday because of a localised outbreak in the northern port city of Dalian
China saw a three-month high of 101 new virus cases on Wednesday because of a localised outbreak in the northern port city of Dalian AFP / STR

The United States, however, is still battling its first wave, having never taken control of the virus, and on Wednesday alone the country recorded 1,267 new deaths in the past 24 hours and notched more than 68,000 new daily cases.

Southern and western states have been particularly hard-hit -- especially Florida, where more than 6,300 people have died.

The EU is due Thursday to update its list of countries approved for travel to the European bloc, which it reviews every two weeks. The United States was not on the list and is not expected to be included.

The EU's safe list does, however, include Australia, Canada, Georgia, Japan, Morocco, New Zealand, Rwanda, South Korea, Thailand, Tunisia and Uruguay.

The bloc is expected to announce that Algeria is being removed from the list after a resurgence of coronavirus.

Meanwhile several countries in Europe have slapped restrictions on travel to and from Spain, while officials elsewhere bicker over the seriousness of the current outbreak.

UK Prime Minister Boris Johnson, fresh from announcing quarantine for travelers returning from Spain, suggested the rest of Europe could be facing a second wave -- despite his own country's dismal figures.

France's health minister hit back on Wednesday, saying his country was categorically not in a second wave.

Spain, one of the countries hit hardest by the pandemic, insists it is a safe destination and was critical of Britain's blanket quarantine, which includes islands without significant outbreaks.

Brazil also wants visitors back, and on Wednesday reopened travel to foreigners arriving by plane, hoping to revive its lockdown-devastated tourism industry. The country closed its air borders to non-residents on March 30, at a time when the virus was just taking hold in South America.

Neighboring Peru on Wednesday passed 400,000 confirmed coronavirus cases, the health ministry said, after the largest daily increase in infections for more than six weeks.

Nearly 19,000 people have died as a result of the disease nationwide, and the country has recorded more COVID-19 cases than anywhere in Latin America except for Brazil and Mexico.