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.

The new, more contagious strain of the novel coronavirus, which is sweeping rapidly across London and other parts of southeast England, has been detected in California's San Bernardino County, officials said.

The latest variant of the virus that causes COVID-19 was found in two members of the same household in the Big Bear area who were tested on Dec. 20, according to a press release from the San Bernardino County Department of Public Health. One of them had contact with a traveler who returned from the United Kingdom on Dec. 11 and began showing symptoms three days later.

Four other cases of the fast-moving strain, known as B117, have been detected in San Diego County.

"Based on the information currently available, we know that the B117 variant strain seems to spread more easily and quickly," Dr. Michael Sequira, San Bernardino County public's health officer, said in a statement Friday. "Therefore, following all safe practices is more important than ever."

Experts say there's currently no evidence that the variant is deadlier or causes more severe illness, or that existing vaccines are less effective against it.

The new strain was announced in England in late December and then confirmed in the United States for the first time on Tuesday, after a case was detected in Colorado.