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 Centers for Disease Control and Prevention updated its guidelines for people with underlying health conditions planning to take a COVID-19 vaccine.

They CDC said that adults with underlying medical conditions -- who are more at risk of becoming seriously ill from COVID-19 -- can receive a vaccine against the virus as long as they have not had a severe allergic reaction to any of the ingredients in it.

The new guidelines state that people with HIV and those with weakened immune systems due to other illnesses or medication should be aware that information about the safety of COVID-19 vaccines for their group is not yet available. While people with HIV were included in clinical trials, more data is required to provide safety guidelines regarding the effects a vaccine could have on them. The same is true for people with autoimmune conditions.

People who have previously had Guillain-Barre syndrome or Bell’s palsy may receive a COVID-19 vaccine, though experts are still acquiring more data about their groups as well.

The CDC added that people should continue to follow coronavirus health measures -- such as wearing a mask and staying 6 feet away from others -- after receiving the shot, as experts have more to learn about the protection that COVID-19 vaccines provide under real-life conditions.