@Puzzledandpissedoff
It's important to note that this (40%) statistic is about the 1st wave
In that case, surely it's even higher now?
After all, aren't we always told the situation in hospitals is much worse this time round?
From the article:
The estimated figure for hospital-acquired coronavirus cases is much lower when a cautious definition is used, counting only those testing positive at least 15 days after admission, who are highly unlikely to have been infected before they got to hospital.
It is too soon to know for certain whether in-hospital transmission was reduced in the second wave, with 24,000 people still on wards with Covid across the UK. The latest NHS England data suggests around one in five hospital cases is acquired on a ward — an average of 330 per day.
Comparing waves is problematic because of the unknown level of infection rates in the community at the time and the long period when PPE wasn't available (in any form) to HCWs (with a separate issue as to availability of testing) and information about the transmission/dispersion of the virus was in its relative infancy.