Nations in Asia imposed new restrictions on Monday and an abrupt British quarantine on travellers from Spain threw Europe’s vaunted summer reopening into disarray, as the world confronted the prospect of a second wave of COVID-19 infections.
In the United States, where infection rates have climbed since June, President Donald Trump’s national security adviser Robert O’Brien became the most senior official to test positive. The White House said Trump and Vice President Mike Pence were not at risk.
Surges were reported in a number of countries previously singled out as places where the virus was under control.
Australia recorded a record daily rise. Vietnam locked down the city of Danang, forcing tens of thousands of visitors to evacuate. Mainland China confirmed the most locally transmitted cases since early March. Papua New Guinea shut its borders.
Hong Kong banned gatherings of more than two people, closed down restaurant dining and introduced mandatory face masks in public places, including outdoors.