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Worried about, or at least the ones that i understand better, first of all they say that there is a large number of mutations in this variant. and a large number compared to other non variants like the delta variant. right? why is that bad? why is that worse to have large numbers? of the mutation, in particular if they appear to be a large number of mutations on the spike protein. we know that the spike protein is what was targeted by vaccine makers, as effectively the way to activate our immune system against these types of viruses. if the spike protein is significantly mutate did, is that wh...

To do and with rates like 60% to 70% in the u.s., 7% on the african continent, you have to wonder whether we really love our neighbor. the point i want to make here is it is the smart thing to do because it is self-defeating not to do it because this is the way to make variants is to let the virus rage and mutate. that is what we don't want to do. >> a couple things. who do we know is getting sick from this variant in south africa and when you talk about the mutations what does that mean the spike protein but first who is getting this? a lot of breakthrough cases, unvaccinated? >> there's earl...

Were made with the delta variant coming out of india and a failure to shut down flights from there quickly, they had to act precipitously, even though a case hasn't been found here. but you're seeing the politics of this covid problem play out throughout all this and the hope is that, you know, they can — the vaccines will be able to deal with this new variant in time. thomas, back a few months ago, cyril ramaphosa was one of a number of african leaders who were saying to western leaders, "look, you need to help us get vaccine to our part of the world, if only for your own self—interest be...

Last shot of pfizer in august, they are the ones that now -- that we have picked up with breakthrough infections. >> doctor, given what we know and what we don't know, what's the best course of action here? >> yes, so a lot to unpack. let me start by saying the fact that the new variant has e american second down really no surprise to any public health expert. we know with 42% of the globe fully vaccinated, the virus is going to continue to replicate and mutate and new variants will emerge. we need to make sure that our leaders, especially the leaders of wealthy nations shift their focus away ...

World the fear that the variant evades immune at this. bancel's team is speaking with other scientists. some of these samples are packed to be shipped to other research institutes in the country. they will know within ten days whether existing vaccines can stop omicron. stephane thinks they will provide some protections. the virus will continue to mutate. >> we will continue to learn the rest of the greek alphabet unless we understand why the variants evolve, how they evolve and be able to predict them. >> reporter: omicron has mainly infected young people here. doctors say their symptoms are ...