Ukraine President said he does not quite understand if Russian President Vladimir Putin is alive. Russia hit back, slamming Zelensky's remarks.

Albert Bourla, Chief Executive Officer of US-based pharmaceutical giant Pfizer, encountered a series of tough questions about the efficacy of its Covid vaccine on the sidelines of the ongoing World Economic Forum, but he repeatedly ignored them.

People at Davos have a tendency to overstate the importance of the gathering, and they have perhaps been spoiled by the obsession Biden's predecessor, Donald Trump, showed with the place.