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What it would take for herd immunity to stop the coronavirus pandemic



The concept of herd immunity is at the heart of global vaccination efforts and discussions on next steps to fight the Covid-19 pandemic and restore economies.

For the pandemic to stop, the coronavirus must deplete the hosts susceptible to infect. Herd immunity occurs when enough people in a population develop an immune response, through a previous infection or vaccination, so that the virus cannot spread easily and even those who are not immune have protection.


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