I said:
"In the 4 months Nov-Feb the average number of patients with C19 in a UK hospital was circa 20k (~15% of beds). In late April I reckon the number will be less than 5000, with "absolute certainty". Last summer for a month it was below 1000."
@Ajax Bay it would be interesting to understand how you reach your conclusions around numbers late April - 8 weeks away. I would expect rates of infection to have increased quite significantly by then, but primarily among the under 60s who are less likely to be hospitalized and quite a lot less likely to die.
All figures 7-day averages
14-21 Feb - 23501 > 18680 reduction 4821 in a week (similar %age reduction the week before - about 20%)
I assumed an exponential decay on the basis that that's what was experienced mid April to mid July 2020. The days taken to reduce by half (each time) averaged 27 days (31, 26, 24).
21 Feb to 20 Mar - 18680 halved gets you to 9340
20 Mar to 16 Apr - halved again = 4670; hence "In late April I reckon the number of patients with C19 in a UK hospital will be less than 5000."
Last spring there was no vaccine effect, however:
By now (24 Feb) nearly all those in JCVI Gps 1 and 2 have had at least 14 days since their first jab. By the end of the month it'll be 14 days (so first dose effectiveness) since all the over 70s and CEV (Gp 4) cohorts had their jab.
Of 100 in hospital, up till 88 have come from those cohorts. With vaccine effectiveness at a conservative 80% (to prevent serious illness (aka hospitalisation) that's 88% x 20% will still be hospitalised = 18. If we assume the 12 people under 70 will still need admission that's 30 in hospital, not 100. And the over 65s and UHC in Group 6 will soon (?22 March) have had 14 days since their first jab. That's another ~5 off the 30.
If a variant of increased lethality (and/or causing serious illness) starts to dominate, that could make a difference, but only if the effectiveness of the current vaccine (~20M by end Feb) is significantly reduced.
While there are high levels of cases in the community, the threat to the vulnerable is still there, even if they are vaccinated. Hopefully all the people they are coming into contact with have also been vaccinated. The vulnerable must continue to be careful: their guard should not drop till the infection rate generally is much lower.
https://coronavirus.data.gov.uk/details/healthcare#card-patients_in_hospital