It’s likely safe to say that following the difficult first year of the COVID-19 pandemic, people were hoping that 2021 would be better. But such was not to be as the pandemic dragged on, thanks in large part to a mutated variant of the virus—delta—that not only caused breakthrough infections in those who had been vaccinated or had natural immunity from a previous infection, but that resulted surges of infections among the unvaccinated that have overwhelmed hospitals. Delta is not only more infectious than the original strain of COVID-19, but causes more severe illness in younger people. Since delta hit...

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