Experts explain how the two strains compare when it comes to immunity, vaccines, mutations, breakthrough cases and more.
While we’re still in the very early stages of understanding how omicron compares to delta, preliminary evidence suggests the new COVID-19 variant may be more contagious but less severe than its predecessor.
But there are too many other contributing factors — like how much immunity a population already has, along with seasonality and behaviors — to know if that is definitively the case.omicron and delta may differ. Here’s what we know so far:For the delta variant, the part of the spike protein that attaches to our cells is very similar to what existing coronavirus vaccines are designed to go after.
Though there’s so much uncertainty about omicron, epidemiologists seem convinced the new variant will outcompete delta across the globe. “Omicron will displace delta as the dominant variant, just as delta replaced alpha. I think that’s pretty certain,” saidAdvertisementExperts have a few theories about how omicron differs from delta, but more data needs to be collected.South Africa has seen more reinfections and breakthrough infections with omicron than with delta. Early
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