These early signs made omicron different from previous Covid variants, experts say.
until countries around the world have more equal and ready access to vaccines, experts say.
“It’s partly why people started facetiously calling these things ‘scariants,’” said Dr. Amesh Adalja, an infectious disease doctor and a senior scholar at the Johns Hopkins Center for Health Security. The number of mutations observed with the omicron variant hasn’t previously been seen with other strains, Adalja said. There are concerns that specific mutations to the spike protein could make the omicron variant less vulnerable to the so-called neutralizing antibodies generated by vaccines or natural immunity from previous Covid-19 infections.
"We have a whole bunch of tools now that we didn't have before," he said."But it's disappointing, for sure. There was kind of this general feeling that we're coming off this delta wave, we're triple-boosted, and it could almost be like 2019 again."
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