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The Omicron COVID variant shattered any expectations that a busy holiday season could bring a rebound to pre-pandemic levels of international travel. 

Host Felix Salmon is joined by Axios What’s Next reporter Joann Muller to discuss travel bans, border closures and new testing requirements that are impacting international air travel.

Go deeper

Updated Dec 20, 2021 - Health

CDC: Omicron accounted for 23% of recent COVID-19 cases

People queue at a street-side COVID-19 testing booth in New York's Times Square on Dec. 20. Photo: Ed Jones/AFP via Getty Images

The Omicron variant accounted for 22.5% of recent COVID-19 cases in the U.S. on the week that ended on Dec. 18 , according to the Centers for Disease Control and Prevention's updated estimate released on Dec. 28.

The latest: The revised data shows Omicron's share of COVID-19 infections nearly tripled in just one week.

Dec 28, 2021 - Health

CDC slashes estimate of Omicron case prevalence

Most current COVID-19 infections are from the Omicron variant, despite the data update. Photo: Tayfun Coskun/Anadolu Agency via Getty Images

The Omicron variant of COVID-19 represented a much smaller proportion of cases during the week that ended Dec. 18 than previously estimated, the Centers for Disease Control and Prevention said Tuesday.

The big picture: Even though the Delta variant appeared to be the primary strain for most of December, Omicron still represents a majority of cases right now — 58.6% according to the CDC's latest estimates.

Updated 2 hours ago - Politics & Policy

British national named in Colleyville synagogue standoff

A law enforcement vehicle sits near the Congregation Beth Israel synagogue on Jan. 16. Photo: Brandon Bell/Getty Images

British national Malik Faisal Akram took four people hostage at a Texas synagogue outside Fort Worth on Saturday, the FBI said in a statement.

State of play: Authorities had initially declined to release the name of the 44-year-old suspect or identify the hostages, all adults, though police chief Michael Miller confirmed that one of those held was Rabbi Charlie Cytron-Walker, who leads the congregation.