A digital vaccination scar for the 21st century

In the 1800s, smallpox ravaged the world.  Fortunately, a vaccine had been developed that could protect individuals.  This vaccine left a scar at the site of injection and identified the individuals as “immune.”

As we look towards the future of the COVID-19 pandemic, unless the virus burns out or an effective therapeutic intervention becomes available, the only way out of our current situation will be immunity – …

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