I don't understand why we need to achieve herd immunity at ~70% vaccinated.
The 60+ and exremely vulnerable group are ~ 20-25% of the population. As this group are vaccinated the risk to the NHS becomes low.
If this group are vaccinated by March/April next year, the chance of any mandatory restrictions being enforcable is close to zero. For economic and social reasons they would simply be ignored.
The vaccine rollout to other groups may continue over the summer.
Eradicating the virus completely may take decades given that vaccines will be voluntary in this country, and many overseas nations may never have an effective vaccination programme.
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