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.

ByMorgan Winsor, Emily Shapiro, Ivan Pereira, and Meredith Deliso

Last Updated: December 13, 2021, 4:29 AM EST

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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Dec 12, 2021, 6:38 PM EST
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Significant case growth expected across much of US, cases could double in NYC

Here's how the news developed. All times Eastern.

Dec 06, 2021, 3:17 PM EST

Northeast sees highest number of child cases since beginning of pandemic

Another 133,000 children tested positive for COVID-19 last week, according to a new report from the American Academy of Pediatrics and the Children’s Hospital Association. Hospital admissions among children have also increased by 20% over the last week, according to federal data.

The Northeast is currently seeing its highest number of child cases since the beginning of pandemic, though the Midwest continues to see the highest number of pediatric cases.

Twenty million children ages 5 to 17 have received at least one vaccine dose, accounting for about 38.3% of that population.

Miles Lane,7, gets a hug from his dad, Jaosn after he and he received a Covid-19 vaccine at a clinic at Park Lane Elementry School in Darby Pa., Nov. 18, 2021.
MediaNews Group via Getty Images, FILE

A healthcare worker pretends to administer a dose of the Pfizer-BioNTech Covid-19 vaccine to a child's stuffed animal at a vaccination clinic in Philadelphia, Nov. 12, 2021.
Bloomberg via Getty Images, FILE

Severe illness due to COVID-19 remains "uncommon" among children, the two organizations wrote in the report. However, AAP and CHA continue to warn that there is an urgent need to collect more data on the long-term consequences of the pandemic on children, "including ways the virus may harm the long-term physical health of infected children, as well as its emotional and mental health effects."

-ABC News' Arielle Mitropoulos

Dec 06, 2021, 1:51 PM EST

Mississippi confirms omicron case

Mississippi said it's confirmed its first case of the omicron variant, detected in a fully vaccinated person who recently traveled to New York, the state's Department of Health said.

The person's symptoms were not released but the health department said the individual was not hospitalized.

Mississippi is seeing "a minimal increase in the number of COVID patients in the hospital and a minimal increase of COVID patients in the ICU and on vents," the Department of Health added.

-ABC News' Michelle Stoddart

Dec 06, 2021, 12:52 PM EST

US daily case average climbs over 100K for 1st time in 2 months

For the first time in two months, the U.S. is now averaging more than 100,000 new cases per day, according to federal data. On average, about 106,000 new cases are being reported each day -- up by about 27% in the last week, and by 65.4% since late-October.

New Hampshire currently holds the country's highest case rate, followed by Michigan, Minnesota, Vermont and Wisconsin. Puerto Rico, Hawaii and Florida have the lowest infection rate, according to federal data.

-ABC News' Arielle Mitropoulos

Dec 06, 2021, 12:27 PM EST

Omicron appears to be 'dominating' new cases in most South African provinces

The omicron variant appears to be "dominating" new infections in most of South Africa's provinces, South African President Cyril Ramaphosa said in a newsletter Monday.

Passengers queue outside a COVID-19 testing center at Cape Town International Airport in Cape Town, South Africa, on Dec. 3, 2021.
Bloomberg via Getty Images

Ramaphosa said the number of daily cases has increased five-fold in the last week.

"As the country heads into a fourth wave of COVID-19 infections, we are experiencing a rate of infections that we have not seen since the pandemic started," he warned.

Just 24.41% of South Africa's population is fully vaccinated, according to Africa CDC. Ramaphosa said scientists in South Africa and around the world are working to answer critical questions about the new variant, and the urgent priority is to continue getting people vaccinated.