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Nations in Asia imposed new restrictions on Monday and an abrupt British quarantine on travellers from Spain threw Europe's summer reopening into disarray, as the world confronted the prospect of a second wave of COVID-19 infections.
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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 the evacuation of tens of thousands of visitors. Mainland China confirmed the most new 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, fearing a possible third wave there.
Just weeks after European countries trumpeted the reopening of tourism, a surge in infections in Spain prompted Britain to order all travellers from there to quarantine for two weeks, torpedoing the travel plans of hundreds of thousands of people.
The World Health Organization said travel restrictions could not be the answer for the long term, and countries had to do more to halt the spread inside their borders by adopting proven strategies such as social distancing and the wearing of masks.
"It is going to be almost impossible for individual countries to keep their borders shut for the foreseeable future.
Economies have to open up, people have to work, trade has to resume," WHO emergencies programme director Mike Ryan said.
"What is clear is pressure on the virus pushes the numbers down. Release that pressure and cases creep back up."
Not like before
Officials in some of the European and Asian countries where the virus is again spreading say new outbreaks will not be as bad as the original waves that hit earlier this year, and can be contained with local measures rather than nationwide shutdowns.
But countries that have suffered extreme economic hardship from months of lockdowns are also determined not to let the virus get out of control again, even if that means reversing the path to reopening.
Europe has yet to lift bans on travellers from many countries, including the United States, where the average number of daily new infections has soared since mid-June and is now above 60,000.
Experts fear France faces second wave in September
Britain's announcement of the return of quarantine for Spain was likely to torpedo the revival of airlines and tourism businesses across the continent, which had thought they had survived their biggest crisis in living memory.
Britain accounts for more than 20% of foreign visitors to Spain, where tourism represents 12% of the economy.
A British junior health minister said more European countries could end up on the "red list" if infections surge.
"If we see the rates going up, we would have to take action because we cannot take the risk of coronavirus being spread again across the UK," Helen Whately told Sky News when asked if Germany or France might be next after Spain.
Belgian authorities struggle to contain Antwerp outbreak
In China, which managed to squelch local transmission through firm lockdowns after the virus first emerged in the central city of Wuhan late last year, the new surge has been driven by fresh infections in the far western region of Xinjiang.
In the northeast, Liaoning province reported a fiRead More – Source
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