The new COVID-19 variant first identified in the United Kingdom could increase the trajectory of the virus in the United States, according to a report released by the Centers for Disease Control and Prevention on Friday.

Unless new mitigation measures are taken, the variant, known as B.1.1.7, is likely to become the predominant variant in the U.S. by March, the report warned. The CDC called for "universal compliance" with public health measures and more genomic surveillance to monitor new variants and mutations.

"Higher vaccination coverage might need to be achieved to protect the public," according to the report. While the new variant is not more deadly than the old one, it is thought to be more transmissible, meaning that it could lead to more cases, and ultimately more hospitalizations and deaths.

-ABC News' Sony Salzman contributed to this report.

Deaths from COVID-19 reached a grim new milestone Friday, with 2,00,905 fatalities reported around the world since the pandemic began, according to data from Johns Hopkins University.

The United States leads the world in COVID-19 deaths, with 389,581 fatalities, followed by Brazil, India, Mexico and the United Kingdom.

-ABC News' Rachel Katz contributed to this report.

Dr. Anthony Fauci called President-elect Joe Biden's promise to administer 100 million COVID-19 shots in the first 100 days of his term "quite feasible" during an interview with NBC's "Today" show Friday. He said he hopes the United States can get to 70% or 80% vaccination within several months.

Part of the distribution holdup, according to Fauci, has been careful prioritization by states. "If you have a dose, give it," he urged states. "Don't be so rigid as to those early designations."

Reaching those goals, however, depends on vaccine uptake. "When a vaccine becomes available, get vaccinated,” Fauci pleaded with the public.

-ABC News' Anne Flaherty contributed to this report.

U.S. President-elect Joe Biden has chosen Dr. David Kessler, former commissioner of the Food and Drug Administration (FDA), to help lead the federal government's COVID-19 vaccine initiative.

Kessler, a pediatrician and lawyer who headed the FDA from 1999 to 1997 under the Bush and Clinton administrations, will replace Dr. Moncef Slaoui, who is the current chief science officer to Operation Warp Speed.

Biden also announced several other appointees who will join his incoming administration's COVID-19 response team.

"We are in a race against time, and we need a comprehensive strategy to quickly contain this virus," Biden said in a statement Thursday. "The individuals announced today will bolster the White House’s COVID-19 Response team and play important roles in carrying out our rescue plan and vaccination program. At a time when American families are facing numerous challenges I know these public servants will do all that is needed to build our nation back better."

The European Medicines Agency (EMA) said Tuesday that it has received an application for conditional marketing authorization for the COVID-19 vaccine developed by England's University of Oxford and British-Swedish pharmaceutical giant AstraZeneca.

Conditional marketing authorization is the process used to speed up the approval of treatments and vaccines amid public health emergencies. The EMA said the assessment of the Oxford/AstraZeneca vaccine "will proceed under an accelerated timeline," and that an opinion on whether to issue an authorization could be announced by Jan. 29.

"If EMA concludes that the benefits of the vaccine outweigh its risks in protecting against COVID‑19, it will recommend granting a conditional marketing authorisation," the agency said in a statement Tuesday. "The European Commission will then fast-track its decision-making process with a view to granting a conditional marketing authorisation valid in all EU and EEA Member States within days."