CNN CNN Newsroom With Fredricka Whitfield November 28, 2021 19:06:00
Reporting. last hour i spoke with moderna's chief medical officer dr. paul burton and asked him why officials are already worried the omicron variant could elude the protection of some of the vaccines. >> just a shout-out to the whole covid community around the world that's really been able to sequence this variant and provide amazing information to the world so quickly. it's an amazing feat. the network for genomics surveillance in south africa, for example. what they show is that this is -- >> here we see president biden is answering a new questions as he -- as he gets his travel under way...