A reason for optimism on Omicron: Our immune systems are not blank slates
The emergence of a new Covid-19 variant with a startlingly large constellation of mutations has countries around the world sounding alarms. While the concerns are understandable, experts in immunology say people need to remember a critical fact: Two years and 8 billion vaccine doses into the pandemic, many immune systems are no longer blank slates when it comes to SARS-CoV-2.
The new SARS-2 variant, known as Omicron, may more easily sidestep some of the immunity of some vaccinated and previously infected people. But there’s good reason to think people who already have some immune protections may avoid the worst of what Covid infections can do to immunologically naïve people.
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