There's still lots of rumours over a London lockdown. If the data I've seen is correct, then:
- On 21st June, hospital deaths were averaging 2.6 per day.
- On 22 Sep the average was 2.7 (the data should be complete by now)
Although tests have gone up dramatically, I see no reason for changing the position.
Destroying a city's economy on this basis is madness. I can't believe Khan keeps clamouring for it - his own city!
Another positive paper released today:
https://www.medrxiv.org/content/10.1101/2020.09.26.20202267v1
Allowing for heterogeneity reduces the estimate of "counterfactual" deaths that would have occurred if there had been no interventions from 3.2 million to 262,000, implying that most of the slowing and reversal of COVID-19 mortality is explained by the build-up of herd immunity. The estimate of the herd immunity threshold depends on the value specified for the infection fatality ratio (IFR): a value of 0.3% for the IFR gives 15% for the average herd immunity threshold.
This is based on modelling, and obviously we know the pitfalls of relying solely on modelling evidence. However, if the average herd immunity threshold is only 15%, then this will easily back up Sweden's strategy, and explain why the likes of Italy and the UK (who were hard hit in the original wave and did not do effective lockdowns in time) are not getting a seriously bad virus situation now (I'm ignoring cases here).
The government probably won't look at this, but the case for further lockdowns is getting ever more shaky.