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https://medicalxpress.com/news/2021-08-covid-herd-immunity.html
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https://medicalxpress.com/news/2021-08-late-delta-variant-herd-immunity.html
AUGUST 16, 2021
COVID-19 herd immunity is not going to happen, so what next? It could be too late to stop the Delta variant, and to achieve herd immunity.
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The evolution of the
virus has been so rapid that the Delta variant, which is currently dominating the world, is at least twice as
transmissible as the ancestral virus that was circulating.
What this means is that
herd immunity is no longer a discussion the world should be having. We should start to avoid using that term in the context of SARS-CoV-2, because it's not going to materialize—or is unlikely to materialize—during our lifetimes.
When politicians and others speak about herd immunity, unfortunately, they are under the misconception that the current tools we've got are adequate to eliminate the virus. It's not what we have at hand right now.
Instead we should be talking about how to live with the virus. The tremendous success that's materialized with COVID-19 vaccines allows us to do this, without actually getting into the herd immunity threshold.
Peddling the concept of herd immunity creates a misconception that we are actually going to get to a stage where this virus is going to be eliminated. That's unlikely to happen. It will continue circulating.
There are a number of dangers in continuing to make people believe it's possible.