The U.S. has surpassed 46 million confirmed cases of COVID-19, the disease caused by the novel coronavirus, and natural immunity from a prior infection may not be enough to rely on when considering the ultimate aim of reducing hospitalization and death caused by transmission — especially when it comes to mitigating the threat to the most vulnerable among us.
“The problem with natural immunity is that A) it’s not as good as vaccination and B) it does wane over time and people get…
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