For the metric of cases, I think an interesting thing to do would be to compare the number of positive tests
per 1,000 tests. That would cancel out the increase in testing and give everything a level playing field.
I’ve found the reported 7-day averages for 1st June, 1st July and 1st August for both cases and testing, and they are as follows:
- 1st June: 1,905 cases, 112,000 tests = 17 cases per 1,000 tests
- 1st July: 711 cases, 137,000 tests = 5.2 cases per 1,000 tests
- 1st August: 802 cases, 172,000 tests = 4.7 cases per 1,000 tests
So it would seem that the proportion of positive tests (aka average prevalence of COVID in the community) is still going down by this metric, albeit at a reduced rate. When you see increased case numbers,
@BigT is right in saying that that is mostly down to testing, as the estimated prevalence of COVID in the community is still decreasing if you look at it through the lens of percentage of tests which are showing up positive.