South African scientists have detected a new COVID-19 variant in small numbers and are working to understand its potential implications, they said on Thursday.
The variant – called B.1.1.529 – has a “very unusual constellation” of mutations, which are concerning because they could help it evade the body’s immune response and make it more transmissible, scientists told reporters at a news conference.
Early signs from diagnostic laboratories suggest the variant has rapidly increased in the most populated province of Gauteng and may already be present in the country’s other eight provinces, they said.
In a regular daily update on confirmed cases countrywide, the National Institute for Communicable Diseases (NICD) later reported 2,465 new COVID-19 infections, slightly less than double the previous day’s infections. The NICD did not attribute the latest resurgence to the new variant, although some leading local scientists suspect it is the cause.
South Africa has confirmed around 100 specimens as B.1.1.529, but the variant has also been found in Botswana and Hong Kong, with the Hong Kong case a traveller from South Africa. As many as 90% of new cases in Gauteng could be B.1.1.529, scientists believe.
“Although the data are limited, our experts are working overtime with all the established surveillance systems to understand the new variant and what the potential implications could be,” the NICD said in a statement.
South Africa has requested an urgent sitting of a World Health Organization (WHO) working group on virus evolution on Friday to discuss the new variant.
Health Minister Joe Phaahla said it was too early to say whether the government would impose tougher restrictions in response to the variant.
South Africa was the first country to detect the Beta variant last year.
Beta is one of only four labelled “of concern” by the WHO because there is evidence that it is more contagious and vaccines work less well against it.
The country detected another variant, C.1.2, earlier this year, but that has not displaced the more common Delta variant and still accounts for only a small percentage of genomes sequenced in recent months.
(Reporting by Alexander WinningEditing by Angus MacSwan, Mark Potter and Frances Kerry)
Courts block two Biden administration COVID vaccine mandates
The Biden administration was blocked on Tuesday from enforcing two mandates requiring millions of American workers to get vaccinated against COVID-19, a key part of its strategy for controlling the spread of the coronavirus.
U.S. District Judge Terry Doughty in Monroe, Louisiana, temporarily blocked the Centers for Medicare & Medicaid Services (CMS) from enforcing its vaccine mandate for healthcare workers until the court can resolve legal challenges.
Doughty’s ruling applied nationwide, except in 10 states where the CMS was already prevented from enforcing the rule due to a prior order from a federal judge in St. Louis.
Doughty said the CMS lacked the authority to issue a vaccine mandate that would require more than 2 million unvaccinated healthcare workers to get a coronavirus shot.
“There is no question that mandating a vaccine to 10.3 million healthcare workers is something that should be done by Congress, not a government agency,” wrote Doughty.
Separately, U.S. District Judge Gregory Van Tatenhove in Frankfort, Kentucky, blocked the administration from enforcing a regulation that new government contracts must include clauses requiring that contractors’ employees get vaccinated.
The contractor ruling applied in the three states that had filed the lawsuit, Kentucky, Ohio and Tennessee, one of at least 13 legal challenges nationwide against the regulation. It appears to be the first ruling against the contractor vaccine mandate.
The White House declined to comment.
The legal setbacks for President Joe Biden’s vaccine policy come as concerns that the Omicron coronavirus variant could trigger a new wave of infections and curtail travel and economic activity across the globe.
Biden unveiled regulations in September to increase the U.S. adult vaccination rate beyond the current 71% as a way of fighting the pandemic, which has killed more than 750,000 Americans and weighed on the economy.
Republican state attorneys general, conservative groups and trade organizations have sued to stop the regulations.
Tuesday’s rulings add to a string of court losses for the Biden administration over its COVID-19 policies.
The most sweeping regulation, a workplace vaccine-or-testing mandate for businesses with at least 100 employees, was temporarily blocked by a federal appeals court in early November.
In August, the U.S. Supreme Court ended the administration’s pandemic-related federal moratorium on residential evictions.
(Reporting by Tom Hals in Wilmington, Delaware; Additional reporting by Nandita Bose in Washington; Editing by Jonathan Oatis and Peter Cooney)
Omicron variant could outcompete Delta, South African disease expert says
The Omicron coronavirus variant detected in southern Africa could be the most likely candidate to displace the highly contagious Delta variant, the director of South Africa’s communicable disease institute said on Tuesday.
The discovery of Omicron has caused global alarm, with countries limiting travel from southern Africa for fear it could spread quickly even in vaccinated populations and the World Health Organization saying it carries a high risk of infection surges.
“We thought what will outcompete Delta? That has always been the question, in terms of transmissibility at least, … perhaps this particular variant is the variant,” Adrian Puren, acting executive director of South Africa’s National Institute for Communicable Diseases (NICD), told Reuters in an interview.
If Omicron proves even more transmissible than the Delta variant, it could lead to a sharp spike in infections that could put pressure on hospitals.
Puren said scientists should know within four weeks to what extent Omicron can evade the immunity generated by vaccines or prior infection, and whether it leads to worse clinical symptoms than other variants.
Anecdotal accounts by doctors who have treated South African COVID-19 patients say Omicron appears to be producing mild symptoms, including a dry cough, fever and night sweats, but experts have cautioned against drawing firm conclusions.
Puren said it was too early to say whether Omicron was displacing Delta in South Africa, since local scientists have only produced 87 sequences of Omicron so far.
But the fact that cases have started to rise rapidly, especially in the most populated Gauteng province, is a sign that some displacement might already be happening.
Delta drove a third wave of COVID-19 infections in South Africa that peaked at more than 26,000 cases per day in early July. Omicron is expected to trigger a fourth wave, with daily infections seen topping 10,000 by the end of the week from around 2,270 on Monday.
Anne von Gottberg, a clinical microbiologist at the NICD, said it looked like infections were rising throughout the country.
On Monday, an NICD presentation a flagged a large number of COVID-19 admissions among infants aged under two years as an area of concern. But von Gottberg cautioned against linking that with Omicron just yet.
“It looks like in fact some of those admissions might have started before the emergence of Omicron. We are also seeing that there was an increase in influenza cases just in the last month or so, and so we need to be really careful to look at the other respiratory infections,” she said.
“We are looking at the data very, very carefully, but at the moment I’m not too sure that we can link it definitively to Omicron.”
South Africa has been praised for alerting the global scientific community and WHO so quickly to Omicron — a brave move given the damage that travel restrictions imposed by multiple countries including Britain will do to its important tourism sector.
The country has reported close to 3 million COVID-19 infections during the pandemic and over 89,000 deaths, the most on the African continent.
(Additional reporting by Tim Cocks in Johannesburg; Editing by Alison Williams)
Air travelers to U.S. set to face tougher COVID-19 testing
The U.S. is moving to require that all air travelers entering the country show a negative COVID-19 test performed within one day of departure in response to concerns about a new coronavirus variant, the Centers for Disease Control and Prevention (CDC) said late on Tuesday.
Currently, vaccinated international air travelers can present a negative test result obtained within three days from their point of departure. Nearly all foreign nationals must be vaccinated to enter the United States. Unvaccinated travelers currently must get a negative COVID-19 test within one day of arrival.
The new one-day testing requirement would apply equally to U.S. citizens as well as foreign nationals.
Reuters reported earlier that a draft proposal was circulating among government agencies for the stricter testing requirement.
A CDC spokeswoman confirmed the agency is working to modify its global testing rules for travel “as we learn more about the Omicron variant; a revised order would shorten the timeline for required testing for all international air travelers to one day before departure to the United States.”
The administration is also considering whether to require air travelers to get another COVID-19 test within three to five days after arrival in the United States, officials said.
The CDC did not confirm that, but noted it continues to recommend all “travelers should get a COVID-19 viral test 3-5 days after arrival” and “post-travel quarantine for any unvaccinated travelers.”
The stricter rules could be announced Thursday, but it was not clear when they might take effect.
CDC Director Rochelle Walensky said the agency “is evaluating how to make international travel as safe as possible, including pre-departure testing closer to the time of flight and considerations around additional post-arrival testing and self-quarantines.”
On Monday, the White House barred nearly all foreign nationals who have recently been in South Africa and seven other southern African countries over concerns about the Omicron variant.
A White House official said earlier Tuesday the administration is evaluating COVID-19 measures “including considering more stringent testing requirements for international travel.”
On Tuesday, the CDC advised Americans against travel to Niger, Papua New Guinea, Poland, and Trinidad and Tobago, citing COVID-19 concerns.
The CDC now lists about 80 foreign destinations as having “Level Four,” its highest level of COVID-19 transmission, and discourages Americans from traveling to those destinations.
(Reporting by David Shepardson; editing by Sandra Maler, Cynthia Osterman and Leslie Adler)
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