The problem is that we will likely never reach 100% anti-body levels by the vaccine programme alone. We can't wait until we do. Its unrealistic and god knows when it will be.
The data tomorrow is likely to show we are at, or as near as damn it to the 90% mark, with another 2 weeks to go until the 19th.
ZednotZee your number of 14% needing to be extremely careful is based on flawed logic.
Many of those who don't have any antibodies will be in low risk groups and some of those who are high risk do have antibodies but these will be insufficient to help.
We also have a sizeable chunk of the population who will survive getting covid but are vulnerable health wise for other reasons. Arguably this number is much higher than those with no immunity to covid at this point.
We also have a group who are very vulnerable to covid, but also very vulnerable to restrictions so effectively are in a camp where they don't win either way - because they are so vulnerable. In this sense quality of life rather than risk becomes relevant and shouldn't be forgotten.
The argument against delaying further largely rests on the problem that we can't stop the Delta wave - only delay it especially because of the increased level of transmittability (and those who will suffer badly from it are in essence fucked either way - whether they get it now or in three months time)
Counter intitatively we might save lives if we go now rather than waiting because of the compound effect of seasonal illnesses in the winter with covid. The argument is along the lines of how when hospital beds become too full, survival rates of covid and other health issues decline due to staffing pressures. Thus in reopening earlier we give the vulnerable a better chance of survival, if they do have the misfortune to get Delta.
This seems to be the logic of where Whitty and other members of Sage are, and the latest Imperial University projections are also consistent with this.
You have to keep in mind here that Alpha couldn't be reduced by the pre-Christmas level of restrictions. The extra transmittability meant we had to up restrictions. Delta is even more transmittable. Arguably, in that context, how much of a difference are masks and social distancing going to help us? We still are going to get an R way above 1 with them.
The alternative is another - VERY strict lockdown over the next 6 weeks.
I'm not sure anyone is really going to seriously argue for that.
We are between a rock and a hard place and what we almost need to do is to get demand for the NHS to 'pass the thread through the eye of the needle' in terms of capacity over the coming months to prevent a 'car crash' in January. Thats basically trying to spread demand over as long a period as we can and getting the covid peak to hit at just the right moment, because deaths are already 'baked in' as they like to call it.
Its a gamble. There's also few other alternatives. And even fewer actually viable ones.