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A new study says the omicron variant might be more infectious than past strains because it has copied part of the genetic code for the common cold, which is also a coronavirus. cnn medical analyst dr. jonathan reiner is a professor of medicine at george washington university. dr. reiner, you always help answer most of my questions. we knew there would be mutations, but what does it mean that omicron has a, quote, stolen genetic code from the common cold? does that make it more dangerous? >> maybe not. it might make it more transmissible. interesting story that suggests that in a patient who wa...

You will not find if you're not looking for it. >> doctor, we -- how is that they're found? because i don't see a national policy of contact tracing, et cetera. how is it they're found? and it's pretty probable then you're thinking this could be as you said more widespread? >> so when you go get tested. when you get a pcr test for coronavirus, a sample or a subset of those specimens that turn positive are sent for sequencing. we figure out the genetic code for that particular virus you're infected with, and that tells us whether you are infected with the delta variant, the omicron variant, or ...

Our vaccines as well as our antibodies. the trouble is just because you see it in the genetic code, you're not actually sure how the virus will behave in the laboratory or humans. the other concern is south africa has seen a spike of cases. the question is is it because the new strain? we are actually getting information from the laboratory over the next two weeks about how these -- this variant behaves with the new -- with the current vaccines. and over the next few weeks, how it behaves in human population. >> doctor krrk, we lost a bit of your audio. i want to clarify. on the timeline piece...

They've taken themselves out of the cue for the next delivery of vaccines. and by doing that, they're allowing many of the countries have been able to purchase the vaccines. we need to see more of that commitment. this needs to be a global wakeup call that we do not, any of us return to normalcy as just mentioned, until we have global vaccine equity. >> let's back up when it comes to omicron. let's talk about what we do and don't know. we don't know if it's more transmisable. we don't know if it does anything to evade vaccines. we don't know if omicron makes you more sick if you get it. right?...

Variantl i wish i knew the answer to that. ., , ~ ., ~ ., that. we really don't know. what we know is that — that. we really don't know. what we know is that is _ that. we really don't know. what we know is that is a _ that. we really don't know. what we know is that is a distinct _ know is that is a distinct possibility that they will be less effective protection against this variant and we have against the currently dominant variant, which is a delta, and the reason we know that is a possibility is the many genetic changes we have seen in the genetic code of this variant include ones in th...