Omicron updates: COVID-19 cases could double in New York City
New York's seven-day average case rate has jumped by 43% since Thanksgiving.
As the COVID-19 pandemic has swept the globe, more than 5.3 million people have died from the disease worldwide, including over 797,000 Americans, according to real-time data compiled by Johns Hopkins University's Center for Systems Science and Engineering.
Just 60.7% of the population in the United States is fully vaccinated against COVID-19, according to data from the Centers for Disease Control and Prevention.
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11 medical center staffers test positive, some with omicron
Eleven staff members at Oakland Medical Center in California have tested positive for COVID-19, and most cases are omicron, Kaiser Permanente said in a statement.
Their exposure was linked to an out-of-state wedding, Kaiser Permanente said.
The staffers are isolated at home with mild symptoms, Kaiser Permanente said, adding that they're all fully vaccinated, including boosters.
"The potential window of exposure at our facility was brief and isolated, as the few affected staff members, who are in patient-facing roles, worked briefly prior to being symptomatic or tested and all adhered to COVID-19 infection prevention guidance," Kaiser Permanente said. "We have identified 8 patients and 8 staff who were potentially exposed; 13 have tested negative for COVID-19 and the remainder are in process. To date, there have been no COVID-19 cases among them."
Forecast: US death toll could reach 837,000 by the new year
A new CDC forecast predicts that the U.S. COVID-19 death toll could reach between 821,000 and 837,000 by Jan. 1, 2022.
The U.S. death toll currently stands at 792,883.
The CDC obtains its forecasts from the COVID-19 Forecast Hub at UMass Amherst, where a team monitors and combines forecasting models from the nation’s top researchers. The team then creates an ensemble forecast, usually with a wide cone of uncertainty.
-ABC News' Arielle Mitropoulos
Work from home advised in England
England will move to "plan B" ahead of Christmas, with the government advising people to work from home if they can beginning on Monday, Prime Minister Boris Johnson said during a press conference Wednesday at 10 Downing Street.
Johnson warned, "It's become increasingly clear that omicron is growing much faster than the previous delta variant and is spreading rapidly around the world."
He said there's evidence that omicron cases in the U.K. could double in two or three days.
-ABC News' Ibtissem Guenfoud
US sees highest daily case average since September
The U.S. is now reporting more than 117,000 new cases each day -- marking the nation's highest daily average since September, according to federal data. Just in the last week, the daily case average has surged by 46%.
New Hampshire currently holds the nation's highest case rate followed by Michigan, Minnesota, Rhode Island, New Mexico and Indiana.
On average, more than 1,100 new COVID-19 related deaths are being reported each day in the U.S. -- up by 38% in the last week, according to federal data.
-ABC News' Arielle Mitropoulos