They reckon 7 - 12 days between symptoms and hospitalisation if its needed. The peak of the cases appears to have been about 5 days ago but numbers spiked about 8 days ago so I would have expected to see more activity in hospitalisations by now. Since Friday hospitalisations have risen by 581 and London accounts for 370 of those, it does look like there is a slight increase in each region but only very small in most (max around 10%) in all but London.
Next few days should inform us more.
Next few days should inform us more.