Coronavirus: What's happening in Canada and around the world on Nov. 30

The latest:

• How Canada changed its position on pandemic travel bans.

• Ottawa requiring COVID-19 testing for some travellers, consulting experts on booster shots.
  
• B.C., Alberta confirm first cases of omicron variant.
  
• Science table calls for health measures as Ontario hits 10,000 deaths linked to COVID-19.
  
• Unvaccinated travellers over age 12 no longer allowedtoboardplanes or trains in Canada.
  
• China concerned about omicron effect on Beijing Olympics.
  
• Track how many people have been given theCOVID-19 vaccine across Canada.
  
• Have a coronavirus question or news tip for CBC News? Email: COVID@cbc.ca.

Alberta and B.C. have detected their first cases of theomicronvariant, bringing the number of provinces that have reported the presence of the new coronavirus variant to four, after Ontario and Quebec.

At a news conference Tuesday, Alberta's chief medical officer of health said the province's first case was confirmed in a returning traveller from Nigeria and the Netherlands.

"I don'twant Albertans to be alarmed," Dr. DeenaHinshaw said."As I mentioned [Monday], we anticipated the arrival of this variant in the provinceeventuallybased on what we've seen from previous strainsof COVID-19."

The person tested positive while asymptomatic and has not left quarantine since returning to Canada, Hinshaw said.

B.C. has also reported its first omicroncase, in the Fraser Health region, in a person travelling back from Nigeria.

That person is isolating, Provincial Health Officer Dr. Bonnie Henry said at a newsconference Tuesday.

She also said health officials have been workingsince late last week to identify a further204 people who had recently travelled to affected countries,and all of those people have been sent forPCR testing and put into isolation.

"We can be confident that we're not seeing widespread transmission of this variant in B.C., yet," Henry said.

The province also updated its COVID-19 restrictions, including limitingworship services in B.C. (other than in Northern Health)to 50 per cent of capacity unless all participants are fully vaccinated.

• INTERACTIVE |Where is the coronavirus pandemic getting better or worse?

The news out of Alberta and B.C. comes a day afterQuebec confirmed one case of the variant and two more cases were confirmed in Ottawa, bringing the total detected in the country's capitalto four.

Ontario has said it isreviewing measures to protect residents, includingpossible acceleration of the third dose vaccine strategy.

WATCH | Vaccine sharing more effective than travel bans, WHO says:

Vaccine sharing more effective than travel bans, WHO says

3 years ago

Duration 6:54

As fears grow about the omicron variant, there needs to be 'more of a sense of urgency' on sharing vaccines, says Dr. Peter Singer, special adviser to the director general of the World Health Organization. 'This is a five-alarm blaze and we're not sending out enough fire trucks.'(Credit: AP Photo/Alastair Grant)

The emergence of the variant, which was first detected in South Africa last week and has beenlabelled a variant of concernby the World Health Organization (WHO), has resulted in many countries, including Canada, moving to limit travel to and fromsouthern African countries.

On Tuesday, Canada extendedtravel restrictions to incoming travellers from three more countries: Egypt, Malawi and Nigeria.The government hadalready banned travellers from seven countriesin southern Africa.

At a news conference, federal officials also announced that incoming air travellers from all countries except the United States will be required to take COVID-19 tests when arriving in Canada.

The tests will be required regardless of a traveller's vaccination status, Health Minister Jean-Yves Duclos said. The requirementwill also apply to Canadian citizens andpermanent residents.

Incoming travellers will have to self-isolate until they receive results of the test.

From CBC News, last updated at 7 p.m. ET

What's happening across Canada

WATCH |Omicron variant puts hundreds in isolation:

Omicron variant puts hundreds in isolation awaiting test results

3 years ago

Duration 2:09

Hundreds of Canadians are in isolation after recently returning from one of the southern African countries on the no-travel list as officials determine what public health measures might be needed to prevent a spike in cases.

• B.C. records 358 new cases, overall hospitalization andICU numbers downover last week.
  
• Nunavut implementing vaccination requirement for many health workers.
  
• Sask. reports 42 new cases;known active case countat its lowest since mid-August.
  
• Manitoba reports128 new COVID-19 cases,four additional deaths.
  
• Hundreds have tried to enter Canada with fake COVID-19 test results, proof-of-vaccine documents, CBSA says.
  
• Vaccines keeping P.E.I. open,top doctor says.
  
• Ontario has lost 10,000 lives to COVID-19. These are some of the stories behind the numbers.
  
• Toronto reopening city office buildings to 100% capacity, mayor says.
  
• University of Alberta study aims to unravel 'long COVID' mysteries still puzzling researchers.

What's happening around the world

As of Tuesday evening,more than262.6million cases of COVID-19 had been reported worldwide, according to the case-tracking tool maintained by Johns Hopkins University. The reported global death toll stood at more than 5.2 million.

InAfrica, South Africa's President, Cyril Ramaphosa, is speaking out against travel bans,saying they punish hiscountry for transparently disclosing information about a new variant.

"We are also insisting that these bans must be removed, they must be lifted," the presidentsaid of bans on travellers from several southern African nations. "Because you do not try and contain a virus through imposing bans unscientifically and indiscriminately."

InEurope, the omicron variant was already in the Netherlands when South Africa alerted WHOabout it last week, Dutch health authorities said Tuesday, adding to fear and confusion over the new version of the coronavirus in a weary world hoping it had left the worst of the pandemic behind. The Netherlands' RIVM health institute found omicron in samples dating from Nov. 19 and 23. WHO said South Africa first reportedthe variant to the UN health agency on Nov. 24.

The Dutch announcement Tuesday further muddies the timeline on when the new variant actually emerged. Previously, the Dutch had said they found the variant among passengers who came from South Africa on Friday but these new cases predate that.

France recorded its first omicron case on Tuesday, in the island territory of Reunion in the Indian Ocean. The patient was identified as a man who had returned to Reunion from South Africa and Mozambique on Nov. 20, before WHO learned of the variant.

In the U.K. where the government says 22 cases have been identified so far, new measures to combat the omicron variant of coronavirus took effect in England on Tuesday, with face coverings again compulsory in shops and on public transportation.

The government also said it would offer all adults a booster dose of vaccine within two months to bolster the nation's immunity.

From Tuesday morning, all travellers returning to the U.K. must also take a PCR test and self-isolate until they receive a negative result. Previously they had been able to take a lateral flow test and no quarantine was required.

Meanwhile, the COVID-19 incidence rate has dropped slightly in Germany and Austria and stabilized in the Netherlands since the three countries introduced new measures to curb the spread of the virus, new data showed. After becoming hot spots in a new wave of infections in western Europe, Austria went into a fourth full lockdown last week and the Netherlands and Germany imposed new restrictions.

In theAsia-Pacificregion, Japan reported its first caseof the omicron variant on Tuesday in a Namibian diplomat who had recently arrived from his country the same day that a ban on all foreign visitors started.

Hong Kong expanded a ban on entry for non-residents from several countries as global health authorities raced to curb a potential outbreak of the omicron virus, while Australia is set to review containment steps after five peopletested positive.

Cambodia barred entry to travellers from 10 African countries, citing the threat from the variant. The move came just two weeks after Cambodia reopened its borders to fully vaccinated travellers.

In the Americas, apanel of U.S. health advisers on Tuesday narrowly backed a closely watched COVID-19 pill from Merck, setting the stage for a likely authorization of the first drug that Americans could take at home to treat the coronavirus.

The Food and Drug Administration panel voted 13-10 that the antiviral drug's benefits outweigh its risks, including potential birth defects if used during pregnancy.

"I see this as an incredibly difficult decision with many more questions than answers," said panel chair Dr. Lindsey Baden of Harvard Medical School, who voted in favour of the drug. He said FDA would have to carefully tailor the drug's use for patients who stand to benefit most.

Ecuador will impose entry curbs on travellers flying from or via a number of African countries and will request vaccine certificates from those arriving from other countries due to the new omicron variant, President Guillermo Lasso said on Monday.

In theMiddle East,Iran on Monday reported4,310 new cases of COVID-19 and 82 additional deaths, according to Johns Hopkins University's case tracker.

From Reuters, The Associated Press and CBC News, last updated at 6:30 p.m.ET