e from COVID-19, we won’t need vaccines at all. </p>
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            <p> To be clear, people contracting a virus is not “a very powerful vaccine,” or any kind of vaccine, period. Also, the estimate for how many people would have to die for the U.S. to achieve herd immunity is approximately 2.13 million, <a data-event-click="{&quot;element&quot;:&quot;ExternalLink&quot;,&quot;outgoingURL&quot;:&quot;https://www.washington