Indoor dining will end Monday in New York City to help stem the spread of COVID-19, Gov. Andrew Cuomo announced.

Outdoor dining and takeout will continue.

Indoor dining accounted for 1.43% of recent spread, said Cuomo, adding that a 74% spike in infections is linked to indoor gatherings at private homes.

Indoor dining capacity could be reduced elsewhere in New York depending on the numbers, the governor said.

Before the governor's announcement, Mayor Bill de Blasio said he felt "tremendous empathy for restaurant owners."

“I feel for them," the mayor added, "but sometimes it’s smart to say, 'Look, if you take an action now, you can stop much worse things from happening later.'"

ABC News’ Aaron Katersky contributed to this report.

A snow leopard at the Louisville Zoo in Kentucky has SARS-CoV-2, the virus that causes COVID-19, said the U.S. Department of Agriculture’s National Veterinary Services Laboratories.

Testing is ongoing for two other snow leopards.

“Samples from three snow leopards were taken after they showed signs of respiratory illness,” the Department of Agriculture said. “It is suspected that they acquired the infection from an asymptomatic staff member, despite precautions taken by the zoo.”

All three animals are expected to fully recover.

This is the first snow leopard in the U.S. to test positive for SARS-CoV-2, though there have been confirmed cases in other big cats in zoos and conservations centers.

ABC News’ Stephanie Ebbs contributed to this report.

HHS Secretary Alex Azar told "Good Morning America" that vaccinations could come Monday or Tuesday.

He said the Pfizer vaccine will be approved, they are just working out the details and finalizing the fact sheet on allergy warnings.

"We weren't counting on it in terms of getting to the projections that you and I have talked about about having enough vaccine for the second quarter," he said. "The Sanofi vaccine could be an important additional technology for later rounds of vaccination as one goes forward later in 2021."

Azar also said the Food and Drug Administration will proceed with the emergency use authorization for the Pfizer-BioNTech vaccine.

He said 20 million Americans will be vaccinated this month, up to 50 million total in January and the U.S. believes "we could have 100 million vaccinations in arm by the end of February."

Los Angeles Mayor Eric Garcetti shared "astounding" COVID-19 figures in a press briefing Thursday.

"In Los Angeles, someone is dying of COVID-19 every 20 minutes," the mayor said, as he reported that there were 74 new deaths from the virus in the county.

Los Angeles County reported a record 12,819 new COVID-19 cases, surpassing Sunday's record of 10,528. Cases have increased 1,000% in the past month-and-a-half, the mayor said.

Intensive care unit bed capacity has also dropped to 7.7%, he said.

"Today's COVID-19 data from LA County is the most devastating since the start of this pandemic," Garcetti said.

The mayor said there is a "light at the end of the tunnel." LA County could begin distributing vaccines early next week if one is authorized soon, he said.

The county could receive up to 83,000 doses in the next couple of days, and as many as 500,000 doses by the end of December, he said.

"I urge all Angelinos to get vaccinated as soon as they qualify," Garcetti said. "The end of this pandemic is finally, finally in sight."

-ABC News' Michelle Mendez contributed to this report.

The chief science adviser to Operation Warp Speed, the U.S. government's initiative to expedite vaccine development, said he doesn't know what vaccine-related executive order President Donald Trump is expected to sign on Tuesday.

"Frankly, I don't know and, frankly, I'm staying out of this. I can't comment," Dr. Moncef Slaoui told ABC News chief anchor George Stephanopoulos in an interview Tuesday on "Good Morning America."

When pressed on the matter, Slaoui added: "Our work is, you know, rolling. We have plans. We feel that we can deliver the vaccines as needed, so I don't exactly [know] what this order is about."

Trump is expected to discuss the order at a COVID-19 vaccine summit to be held at the White House later Tuesday, multiple White House officials told reporters during a background briefing on Monday evening. While it's not entirely clear on how exactly the order would work, the move is designed to prevent the U.S. government from shipping any vaccine doses it has purchased to aid foreign countries until all the needs within the United States are met.

White House officials also denied reports that the Trump administration turned down an offer last summer to purchase an additional 400 million doses of a COVID-19 vaccine developed by U.S. pharmaceutical giant Pfizer and its German partner BioNTech, and that the companies now may not be able to provide more of their vaccine to the United States until June 2021 because they have committed those doses to other countries.

When asked about the matter, Slaoui explained Operation Warp Speed's strategy in securing vaccine doses.

"We selected six different vaccines to build a portfolio to manage the risk that some may work and some may not work, but also to ensure that as more than one would work that we would accumulate vaccine doses from this portfolio of vaccines," he said. "If somebody came to us and said, let's buy more of this vaccine or that vaccine, no one reasonably would buy more from any one of those vaccines because we didn't know which one would work and which one may be better than the other. Once the vaccine's performance becomes known is the right time, given the strategy we've taken, to go and order more vaccine doses, which we may be doing. And frankly, the constructive thing to do if one of the suppliers has challenges producing enough vaccine doses is to roll our sleeves and help ensure that capacity can be increased."

Slaoui said he's confident the U.S. government will be getting vaccines to Americans who need them "as soon as possible" and that plans are "still on track."

"We will work with Pfizer to try and increase capacity and have those vaccines available," he said. "We have two more vaccines from J&J and AstraZeneca that will be completing their Phase 3 trials in January and most likely, I hope, be approved for use in February. We have tens of millions of doses from those vaccines, you know, participating to the volume of vaccines we need to immunize the U.S. population as we promised, all of it by the middle of the year 2021 and that's still on track."

Slaoui said Operation Warp Speed has a meeting with President-elect Joe Biden's transition team scheduled for Thursday.

"We look forward to, you know, sharing all the information and working together," he said. "Our objective has always been outside of politics and making sure we make available these vaccines for the U.S. people, and that's what we're doing."

ABC News' Ben Gittleson, John Parkinson and Eric Strauss contributed to this report.