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COVID Omicron Variant Prompts Biden to Announce Air Travel Curbs on 8 Nations

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People line up to get on an Air France flight to Paris at O.R. Tambo International Airport in Johannesburg, South Africa, Nov. 26, 2021. Several nations have moved to stop air travel from southern Africa in reaction to discovery of a new COVID-19 variant in South Africa.

U.S. President Joe Biden announced the United States will restrict travel from South Africa and seven other countries, effective Monday.

The U.S. travel prohibition is still being worked out and will likely mirror earlier policy. The restrictions do not apply to American citizens and lawful permanent residents; however, they must test negative before traveling, as must all international travelers.

Biden made the announcement Friday after consulting with Dr. Anthony Fauci, his chief medical adviser. Besides South Africa, the other countries are Botswana, Zimbabwe, Namibia, Lesotho, Eswatini, Mozambique and Malawi.

Omicron US Restrictions
Omicron US Restrictions

Biden took the action after the World Health Organization (WHO) designated the new variant, B.1.1.529, a variant of concern and dubbed it omicron.

In his announcement, Biden said he had two important messages for the American people: For those fully vaccinated, "get a booster shot as soon as you are eligible." And "for those not yet fully vaccinated, get vaccinated today."

The U.S. president also called for countries to donate vaccines.

"The United States has already donated more vaccines to other countries than every other country combined. It is time for other countries to match America's speed and generosity," he said in Friday's statement.

WATCH: COVID Mutation Explainer

What is omicron?

Omicron is the fifth WHO-designated variant of concern. It was first detected in recent weeks in South Africa, which has seen an exponential rise in COVID-19 cases.

There are about 30 mutations on the virus' spike protein, and scientists worry that some of them could make the virus easier to transmit. But scientists do not yet know whether omicron is in fact more transmissible or dangerous.

Worries about the new variant sent financial markets reeling Friday and pushed the price of oil down by $10 a barrel.

The WHO said understanding the variant could take weeks and cautioned against travel restrictions. Its director of emergencies, Mike Ryan, urged "no knee-jerk responses."

Ryan's advice went unheeded as travel restrictions were immediately reinstated in places including Britain, the European Union, Canada and the U.S. Other countries, such as India, Japan, Israel, Turkey, Switzerland and the United Arab Emirates enacted some form of travel curbs, Reuters reported.

Some epidemiologists warned that they were likely too late. Omicron has already been found in Belgium, Botswana, Israel and Hong Kong. Dozens of passengers disembarking in the Netherlands from flights from South Africa initially tested positive for the coronavirus.

"Travelers with a positive test result will be placed in isolation at a hotel at or near Schiphol," Dutch health authorities said in a statement. "Of the positive test results, we are researching as quickly as possible whether they are the new variant of concern."

A health care worker collects a swab for a PCR test to detect coronavirus disease before the traveler heads for London, at O.R. Tambo International Airport in Johannesburg, South Africa, Nov. 26, 2021.
A health care worker collects a swab for a PCR test to detect coronavirus disease before the traveler heads for London, at O.R. Tambo International Airport in Johannesburg, South Africa, Nov. 26, 2021.

But others held out hope that early detection of the new variant, coupled with the new restrictions, could have a bigger impact than the initial response to delta variant, Jeffrey Barrett, director of COVID-19 Genetics at the Wellcome Sanger Institute in Hinxton, England, told The Associated Press.

"With delta, it took many, many weeks into India's terrible wave before it became clear what was going on and delta had already seeded itself in many places in the world and it was too late to do anything about it," he said. "We may be at an earlier point with this new variant, so there may still be time to do something about it."

The South African government has called the travel restrictions "rushed" and raised concerns about the impact on business.

The CEO of South Africa's inbound tourism association, David Frost, says the effects will be devastating on the sector.

"We got off the red list in October, and it was sorely needed. We've been shut down for over 18 months," Frost said. "You know, the industry really is on its knees. The impact of this is absolutely dire to livelihoods, to families."

Dr. Michelle Groome, head of the Division of Public Health Surveillance and Response at South Africa's National Institute for Communicable Diseases, said social distancing and mask use could help combat the virus, but she questioned the efficacy of travel bans.

"We haven't been able to contain the spread initially of the original virus, and all subsequent variants have spread globally, you know," Groome said. "I think there's limited value in terms of these restrictions."

FILE - A young woman prepares to get vaccinated against COVID-19 at a health facility in Harare, Zimbabwe, Sept, 24, 2021.
FILE - A young woman prepares to get vaccinated against COVID-19 at a health facility in Harare, Zimbabwe, Sept, 24, 2021.

Instead, she said, vaccinating more of the population would help prevent the most severe cases and deaths.

Low vaccination rates

Roughly 35% of the South Africa's adult population is vaccinated, a figure far below targets of 70%.

Figures are even lower across much of the African continent.

Experts have warned vaccine inequality would create a breeding ground for virus mutations.

Astrid Haas is an independent urban economist in Kampala, Uganda.

"In Europe now and in North America, in particular, they're talking about booster shots and third vaccines, whereas we know now from the WHO that less than 10% of African countries are going to even meet their vaccine target for this year. … Just a very sad manifestation of the global vaccine inequity," she said.

In the absence of vaccinations, lockdowns may be on the horizon.

Some information for this report came from The Associated Press and Reuters.

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