New South Africa Covid Strain Omicron Sends Shockwaves Across the Globe

There's a lot of hype, but Dr. Peter Hotez, at the video, says he's not panicked, as he's not seen anything as infectious as the Delta variant so far. Still, the U.S. has imposed travel bans on eight African nations, and the U.K. announced travel curbs on six nations as well.

At the BBC, "Coronavirus variant fear sparks Africa travel curbs," and the Telegraph U.K. "Coronavirus latest news: EU suspends all flights to southern Africa over omicron Covid variant fears."

More at NYT, "Variant Detected in South Africa Prompts Travel Restrictions":

The World Health Organization said a newly identified coronavirus variant in southern Africa was “of concern” on Friday, as countries around the world moved to restrict travelers arriving from that region to keep it from crossing their borders.

So far, only a few dozen cases of the new variant have been identified in South Africa, Botswana, Belgium, Hong Kong and Israel. There is no proof yet that the variant is more contagious or lethal, or could diminish the protective power of vaccines, but uncertainty on those questions was one factor in the speed of countries’ move toward restrictions.

On Friday evening, the World Health Organization gave the new version of the virus the name Omicron and called it a “variant of concern,” its most serious category. “This variant has a large number of mutations, some of which are concerning,” the W.H.O. said in its official description. “Preliminary evidence suggests an increased risk of reinfection with this variant.”

Earlier on Friday, the European Commission proposed that its member countries activate the “emergency brake” on travel from countries in southern Africa and other affected countries to limit the spread of the variant.

“All air travel to these countries should be suspended until we have a clear understanding about the danger posed by this new variant,” Ursula von der Leyen, the president of the European Union’s executive arm, said in a statement. “And travelers returning from this region should respect strict quarantine rules.”

In the past, governments have taken days, weeks or months to issue travel restrictions in response to new variants. This time, however, restrictions came within hours of South Africa’s announcement. At least 10 countries around the world had announced measures before South African scientists finished a meeting with World Health Organization experts about the variant on Friday.

The United States and Canada announced restrictions on travelers arriving from countries in southern Africa. Other governments that halted or restricted flights from South Africa included Bahrain, Belgium, Britain, Croatia, France, Germany, Israel, Italy, Japan, Malta, the Netherlands, Hong Kong, the Philippines and Singapore.

The new variant, initially called B.1.1.529, has a “very unusual constellation of mutations,” according to Tulio de Oliveira, director of the KwaZulu-Natal Research and Innovation Sequencing Platform. On the protein that helps to create an entry point for the coronavirus to infect human cells, the variant has 10 mutations, many more than the highly contagious Delta variant, Professor de Oliveira said.

Still, even epidemiologists who have been the most outspoken in supporting precautions against the virus urged calm on Friday, noting that little is known about the variant and that several seemingly threatening variants have come and gone in recent months.

“Substantively NOTHING is known about the new variant,” Roberto Burioni, a leading Italian virologist, wrote on Twitter, adding that people should not panic...