Two New Year's Eve parties in New York City, one in Manhattan with more than 145 people and another in Queens with more than 300 people, were shut down by city sheriff deputies, according to a Tweet posted by the NYC Sheriff's Twitter account on Friday.

The charges in connection with the shutdowns included violating emergency orders, lacking a liquor license and health code violations.

-ABC News' Joshua Hoyos contributed to this report.

Despite repeated warnings not to travel for the holidays from the Centers for Disease Control and Prevention, 14,388,562 people passed through Transportation Security Administration (TSA) checkpoints between Dec. 18 and Dec. 31.

Still, that number pales in comparison to previous years. In 2019, 33,242,050 people were screened by the TSA at U.S. checkpoints during the same period.

-ABC News' Sam Sweeney contributed to this report.

Three new cases of the new COVID-19 variant first identified in the U.K. were reported by health officials in San Diego Thursday, leading them to believe there's community-wide transmission of the new variant in the area.

The new variant, known as B. 1.1.7., has also been detected in Colorado and Florida, and is believed to be more transmissible than the old variant, but not thought to be more deadly.

"We believe that many more cases of the B. 1.1.7. strain will be confirmed in the coming days and weeks," Dr. Eric McDonald, medical director of epidemiology and immunizations services at the country health department, said in a statement.

-ABC News' Jenna Harrison contributed to this report.

California reported 585 COVID-19 deaths over 24 hours on Friday, the highest one-day death toll that the state has reported thus far. Since some counties, such as hard-hit Los Angeles, are still confirming deaths from the virus not counted over the holidays, it's not yet known whether Friday's death report is an anomaly.

Intensive care unit capacity in the state remains extremely strained, particularly in Southern California and the San Joaquin Valley, each of which had 0% ICU capacity as of Friday, according to the California Department of Health.

-ABC News' Jenna Harrison contributed to this report.

A staggering 299,087 new cases of COVID-19 were confirmed in the United States on Saturday, according to a real-time count kept by Johns Hopkins University.

It's the highest tally of newly diagnosed COVID-19 infections that a country has recorded in a 24-hour reporting period since the start of the pandemic.

An additional 2,398 deaths from COVID-19 were also registered nationwide on Saturday, down from a peak of 3,750 on Dec. 30, according to Johns Hopkins data.

COVID-19 data may be skewed due to possible lags in reporting over the holidays followed by a potentially very large backlog.

A total of 20,430,088 people in the U.S. have been diagnosed with COVID-19 since the pandemic began, and at least 350,214 of them have died, according to Johns Hopkins data. The cases include people from all 50 U.S. states, Washington, D.C., and other U.S. territories as well as repatriated citizens.

Much of the country was under lockdown by the end of March as the first wave of pandemic hit. By May 20, all U.S. states had begun lifting stay-at-home orders and other restrictions put in place to curb the spread of the novel coronavirus. The day-to-day increase in the country's cases then hovered around 20,000 for a couple of weeks before shooting back up over the summer.

The numbers lingered around 40,000 to 50,000 from mid-August through early October before surging again to record levels, crossing 100,000 for the first time on Nov. 4 and reaching 200,000 for the first time on Nov. 27.