(NEW YORK) — As the COVID-19 pandemic has swept the globe, more than 5.2 million people have died from the disease worldwide, including over 776,000 Americans, according to real-time data compiled by Johns Hopkins University’s Center for Systems Science and Engineering.

Just 59.1% of the population in the United States is fully vaccinated against COVID-19, according to data from the Centers for Disease Control and Prevention.

Here’s how the news is developing. All times Eastern:

Nov 29, 10:17 am
Omicron completely evading vaccines is ‘extremely unlikely’: Dr. Ashish Jha

Dr. Ashish Jha, dean of Brown University School of Public Health, told TODAY he assumes omicron is already in the U.S. and predicts it’ll be identified in the next few days.

But Jha said he believes it’s “extremely unlikely” that omicron would completely evade vaccines.

“I think that our vaccines will hold up — the question is … is it a little bit less effective? A lot less effective? We will have that data — both laboratory data and clinical data — in the next week or two at the most,” he said.

“I wouldn’t make any major changes to plans” for the holidays yet, he continued. “I would just wait and make sure you’re vaccinated and everybody around you is vaccinated.”

“If you’re fully vaccinated — and especially if you’re boosted — you’re going to have more protection against this variant,” Jha said.

-ABC News’ Cheyenne Haslett

Nov 29, 9:42 am
Portugal finds 13 cases of omicron variant among Lisbon soccer club

Portuguese health authorities on Monday confirmed 13 cases of the omicron variant among professional soccer players.

The Ricardo Jorge National Health Institute said the players who tested positive are all members of the Lisbon-based Belenenses SAD soccer club and that one of them had recently traveled to southern Africa, where the omicron variant was first identified last week.

The institute is investigating whether this is one of the first reported instances of local transmission of the new coronavirus variant outside of southern Africa, where most of the cases have been recorded so far.

All 13 players have been placed in quarantine and those who have been in contact with them were ordered to isolate, regardless of their vaccination status or their exposure to possible contagion. The players and their close contacts will be regularly tested for COVID-19, the institute said.

-ABC News’ Aicha El Hammar Castano

Nov 29, 9:05 am
Moderna’s chief medical officer talks omicron variant

Moderna’s chief medical officer, Dr. Paul Burton, said the omicron variant probably emerged around mid-October in southern Africa.

“How transmissible is it? We think it’s probably quite transmissible. But how severe is the disease it causes? We don’t know the answer to that question yet,” Burton told ABC News’ Amy Robach in an interview Monday on Good Morning America.

“While we think that vaccine effectiveness may come down based on the mutations seen in this virus … we should be able to get antibodies up” with the booster shot, Burton said.

“We’ll know from tests in the next couple of weeks how effective the vaccines are against this variant,” he added.

Nov 29, 8:15 am
Omicron variant will ‘spread widely,’ Fauci warns

Dr. Anthony Fauci, the U.S. government’s top infectious diseases expert, is urging Americans who have been vaccinated against COVID-19 and are eligible to get a booster shot to do so now, in anticipation of the omicron variant spreading “widely.”

So far, there are no known confirmed cases of the new variant in the United States, according to Fauci, who is the chief medical adviser to U.S. President Joe Biden.

“But obviously, we’re on high alert,” Fauci told ABC News’ George Stephanopoulos in an interview Monday on Good Morning America.

“It’s inevitable that, sooner or later, it’s going to spread widely because it has at least the molecular characteristics of being highly transmissible,” he added, “even though there are a lot of things about it that we do not know but will be able to ascertain in the next week or two.”

Fauci, who is also the director of the National Institute of Allergy and Infectious Diseases, said omicron clearly has a “transmissibility advantage,” based on what scientists have seen in southern Africa, where the variant was first identified last week.

“But the extent of that, again, still needs to be worked out,” he noted. “We’ll know soon.”

Fauci said the severity of illness that the omicron variant can inflict remains unclear, despite early reports that some patients had mild symptoms.

Although there is still so much unknown about the new variant, Fauci said it’s clear that vaccinated individuals, particularly those who have received booster doses, fare better against COVID-19 than their unvaccinated counterparts.

“So we don’t know exactly what’s going on with this new variant,” he said, “but I would assume — and I think it’s a reasonable assumption — that when you get vaccinated and boosted and your [antibody] level goes way up, you’re going to have some degree of protection, at least against severe disease.”

Both Pfizer-BioNTech and Moderna booster shots have been authorized for all adults in the United States. Anyone over the age of 18 can get a booster dose at least six months after they received their second dose of the Pfizer-BioNTech or Moderna vaccines, or at least two months after they got their single dose of the Johnson & Johnson vaccine.

“I would strongly suggest you get boosted now and not wait for the next iteration of [the vaccine], which we may not even need,” Fauci said. “The pharmaceutical companies are preparing to make a specific booster for [omicron], but we may not need that.”

Nov 29, 4:44 am
WHO says overall global risk of omicron variant is ‘very high’

The World Health Organization has assessed the overall global risk related to a newly discovered variant of the novel coronavirus as “very high.”

In a technical brief published Sunday, the WHO explained that omicron, or B.1.1.529, “is a highly divergent variant with a high number of mutations,” some of which it said “are concerning and may be associated with immune escape potential and higher transmissibility.”

“Given mutations that may confer immune escape potential and possibly transmissibility advantage, the likelihood of potential further spread of Omicron at the global level is high,” the WHO concluded in a risk assessment. “Depending on these characteristics, there could be future surges of COVID-19, which could have severe consequences, depending on a number of factors including where surges may take place.”

The variant was first identified in southern Africa last week and has quickly spread to several countries across the globe, sparking new travel restrictions and shaking financial markets. On Friday, the WHO officially named the variant omicron and designated it as a “variant of concern.” Both the WHO and the U.S. Centers for Disease Control and Prevention say that variants of concern have shown to spread more easily than others and cause more severe disease.

While omicron has not yet been detected in the United States, Dr. Anthony Fauci, the government’s top infectious diseases expert, told ABC News on Sunday that the variant will “inevitably” arrive.

“The question is,” he added, “will we be prepared for it?”

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