How will the Covid-19 pandemic end, and when? For answers, look to the past.
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"That probably sounds bleak, but don’t despair. The truth of the matter is that pandemics always end.
And to date vaccines have never played a significant role in ending them."
"Instead, the viruses that caused these pandemics underwent a transition. Or more to the point, we did. Our immune systems learned enough about them to fend off the deadliest manifestations of infection, at least most of the time. Humans and viruses reached an immunological détente. Instead of causing tsunamis of devastating illness, over time the viruses came to trigger small surges of milder illness. Pandemic flu became seasonal flu."