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For my back of a fag packet estimation I went with the 10% figure quoted for London rather than the 4% as that would give a more cautious result. Scary how your alternative way of calculation based on the size of the population and the % fatality rate give similar numbers in the hundreds of thousands. Your right that we don't know what the case fatality rate is going to be but I came across this briefing from the WHO where Dr Michael Ryan is saying that because the serology is now showing far fewer people have been infected than we thought then the percentage who get a serious illness is higher than we initially thought. Very worrying and I hope this doesn't mean a 1% fatality rate is optimistic.
Just 5% in Spain and 11% in Madrid? This is similar to the 4% in UK and 10% in London from Patrick Vallance on Monday. However are the care home deaths 'inflating' the fatality rate temporarily in countries? They'd need to know the separate infection rates for non care homes and care homes. I think care homes will possibly have a higher infection % rate than national average. However, I'd still expect them to be a low percentage of UK infections overall even though they're quite a high percentage of deaths.Serology from Spain showing the same
This is speculation of course but given how easy it can spread within the care homes then you'd expect a higher infection rate and death rate within the care homes. I wouldn't expect this to mirror the national statistics outside of care homes though. They should know how many of the antibody tests have included care home residents.
For example, in England using the ONS data, there's been 36,000 deaths at care homes in the last 8 weeks (4,500 a week) and at a rough estimate it would be 20,000 (2,500 a week). So there's been around 16,000 excess care home death in England. Some of those would die in hospital so just say a wild guess at 10,000 excess care home deaths which is a 5th of the excess UK deaths up to May 1st. I don't think the true infection numbers in English care homes is a 5th of overall infections.
If it's a small infection rate percentage for care homes then the fatality rate would be smaller for the UK if you took away the care home antibody tests and deaths. That's one positive in a shit situation I'm trying to work out and understand as I type. I hope people get what I mean as I've confused myself and can't be arsed to proof read!
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