COVID-19 updates: Elizabeth Warren tests positive

The senator says she's experiencing "mild symptoms."

ByMorgan Winsor, Emily Shapiro, Ivan Pereira, and Meredith Deliso
Last Updated: December 20, 2021, 12:51 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 806,000 Americans, according to real-time data compiled by Johns Hopkins University's Center for Systems Science and Engineering.

About 61.4% of the population in the United States is fully vaccinated against COVID-19, according to data from the Centers for Disease Control and Prevention.

Latest headlines:

Here's how the news is developing. All times Eastern.
Dec 18, 2021, 3:42 PM EST

White House delays enforcement of workforce vaccine-or-test mandate

Enforcement of the Biden administration's vaccine-or-test mandate for private companies with more 100 employees will be delayed by a month, officials said.

The Labor Department’s Occupational Safety and Health Administration announced the change Saturday, a day after a federal appeals court lifted a stay on the rule, allowing it to proceed. 

Previously, the mandate required companies to enforce masks among unvaccinated employees beginning Dec. 6, and either see proof of vaccination or begin testing workers weekly by Jan. 4. 

The new deadlines for compliance are now Jan. 10 and Feb. 9, respectively, OSHA said.

-ABC News' Anne Flaherty

Dec 18, 2021, 3:32 PM EST

New York state sets another daily case record

Nearly 22,000 positive COVID-19 test results were reported in New York state in the last 24 hours, according to Gov. Kathy Hochul's office -- breaking a single-day record set the day before. 

The 21,908 positive COVID-19 test results are out of 290,930 results reported -- for a 7.53% positivity rate.

Demand for testing also continues to rise, with about 27,000 more people getting tested on Friday.

"This is not like the beginning of the pandemic. We are prepared for the winter surge because we have the tools at our disposal," Hochul said in a statement. "Getting vaccinated, getting the booster and wearing a mask are critical to avoiding getting seriously ill from COVID-19, so don't take a chance."

-ABC News' Joshua Hoyos

Dec 18, 2021, 3:18 PM EST

President Biden to announce 'next steps' in COVID-19 response on Tuesday

President Joe Biden will deliver remarks this Tuesday on the country's fight against COVID-19 and "announce new steps" the administration will take amid the growing spread of the omicron variant, White House officials said.

The president will address steps the administration is taking "to help communities in need of assistance, while also issuing a stark warning of what the winter will look like for Americans that choose to remain unvaccinated," White House press secretary Jen Psaki said on Twitter Saturday afternoon.

The speech will come as millions of Americans prepare to travel and gather for the holidays, and as concerns about the omicron variant continue in the U.S. and around the world. 

-ABC News' Molly Nagle

Dec 18, 2021, 10:21 AM EST

Over 10,000 additional confirmed omicron cases in UK

An additional 10,059 confirmed cases of the omicron variant of COVID-19 have been reported across the U.K., according to the U.K. Health Security Agency's daily omicron overview on Saturday.

People receive a booster shot inside a COVID-19 pop-up vaccination site at Stamford Bridge in London, Dec, 18, 2021.
David Klein/Reuters

Confirmed omicron cases in the U.K. now total 24,968.

-ABC News' Rashid Haddou