Omicron: Travel curbs tightened across globe amid fears over new COVID variant

Australian officials are racing to carry out further tests on passengers arriving from southern Africa who tested positive for Covid-19 to determine if they are carrying the Omicron variant, as nations around the world tightened controls against the worrying new strain.COVID variant

Neighbouring New Zealand announced it is restricting travel from nine southern African countries because of the threat posed by the variant, and Japan widened its border controls to include more countries from the region.

Tourist-dependent Thailand, which only recently began loosening its tight border restrictions to leisure travellers from certain countries, announced a ban of its own on visitors from eight African counties.

Similar restrictions took effect in the business hub of Singapore, which is barring entry and transit to anyone with a recent history of travel to seven southern African nations.

Pic: Lisa Ferguson

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The tighter restrictions in the Asia-Pacific region echoed steps rapidly taken by countries around the world to limit the spread of the Omicron variant just days after it was identified by researchers in South Africa.

The "act first, ask questions later" approach reflects growing alarm about the emergence of a potentially more contagious variant nearly two years into a pandemic that has killed more than five million people, turned lives upside down, and disrupted economies across the globe.

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While much remains to be learned about the new variant, researchers are concerned that it may be more resistant to the protection provided by vaccines and could mean that the pandemic lasts for longer than anticipated.

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Cases involving the Omicron variant have already been confirmed on multiple continents, with Germany, Italy, Belgium, Israel and Hong Kong all reporting cases in recent days.

The United States' top infectious diseases expert, Dr Anthony Fauci, said he would not be surprised if the Omicron variant is already in the US too.

"We have not detected it yet, but when you have a virus that is showing this degree of transmissibility ... it almost invariably is ultimately going to go essentially all over," he said on NBC television.

In Australia, the New South Wales health department said on Sunday that urgent genomic testing is being carried out on samples taken from two passengers who arrived in Sydney from southern Africa the day before and tested positive on arrival.

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The department said the travellers were from one of nine African countries that are now required to quarantine in a hotel upon arrival in Sydney - South Africa, Lesotho, Botswana, Zimbabwe, Mozambique, Namibia, Eswatini, Malawi and the Seychelles.

New Zealand's Covid-19 Response Minister Chris Hipkins said the island nation is taking a precautionary approach.

From late on Sunday, only New Zealand citizens from nine African countries will be allowed entry, and they will be required to spend two weeks in a quarantine hotel run by the military.

Mr Hipkins said officials are confident the variant has not entered New Zealand and they are well placed to keep it out.

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Many countries have slapped restrictions on various southern African countries over the past couple of days, including Brazil, Canada, the European Union, Iran and the US, in response to warnings over the transmissibility of the new variant.

This goes against the advice of the World Health Organisation, which has warned against any overreaction before the variant has been thoroughly studied.

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