Tim Drayton wrote:As to how long it takes to attain herd immunity, I will leave the answer to an expert, Dr. Knut M. Wittkowski, the former chief biostatistician and epidemiologist at Rockefeller University Hospital:
All respiratory epidemics end when 80 percent of all people have become immune. Then if a new person gets infected, the person doesn’t find anybody else to infect. The best strategy you can do is isolate the old and fragile people — make sure that nobody visits the nursing homes — then let the children go to school and let people go to work. … They have a mild disease. Then they become immune, and after two or three weeks the epidemic is over.
https://nypost.com/2020/03/28/new-yorke ... eakeasies/If he’s right, you just need to isolate the vulnerable for two to three weeks.
If he is right. So is he right ? Have you done any critical thinking for yourself as to if you think he is right ? Any at all ? Or are you just deciding he is right because it fits with your position that targeted testing of vulnerable groups is a better approach than generic measures to slow spread ? Have you done anything long the lines of
So he says that "respiratory epidemics end when 80 percent of all people have become immune" and that this takes " two or three weeks the epidemic is over". So how could this assertion be tested ? If Corona virus follows this pattern what sort of % of the population should we being seeing testing positive for antibodies, in places like Sweden that has had next to no anti spread lock down measures, given that we are 2-3 months in ? Should we not be seeing 80% of population testing positive for antibodies or close to it ? Are we seeing that in Sweden from the latest test , using the largest and most random / average test groups ? I am not talking about estimates based on 'modelling' of which you have promoted many here coming up with guesses that 50% or more of the population have already been infected. I mean actual anti body testing of significant subsets of the population. Are we seeing from these any where even close to the claimed 80% that is typically achieved within 2 - 3 week according Wittkowski ? Or are we in fact seeing numbers an order of magnitude lower or closer to such as antibody testing becomes more widespread ? In places like Sweden, Spain, Italy and New York. So if the best numbers we have from actual testing in some of the worse affect areas to date are not showing any where near the 80% after 2-3 months, then where does that leave Wittkowski claim ?
His numbers do not add up against what is known and you simply to not care Tim.
Nor do they add up if you think critically and do the numbers 'backwards' from your claimed consensus IFR figure of 0.37%. Sweden population 10.23 million. 80% infection required for herd immunity according to Wittkowski. Of that 80% 0.37% will die (IFR), meaning if 80% has been reached there should be 30,280 deaths in Sweden. Current figures are 3,925. Discrepancies all over the place yet you seem not to care one iota ? Why is that Tim. Why did 'discrepancy' between ONS numbers on deaths all causes vs those attributed to covid-19 become so majorly important to you, yet discrepancies like these seem to not even register with you at all ?
There is no need to ponder at all. You tubes guidelines are simple and clear.
including content that explicitly disputes the efficacy of global or local healthy authority recommended guidance on social distancing that may lead others to act against that guidance.
That is why his videos have been removed from youtube. Nothing to ponder here. Nor is youtube the only place such mavericks can share their views and opinions to those willing to suck them out without any critical thought of their own, as you yourself have shown and proven. He is not being silenced because if he had been silenced to any degree of effectiveness you would not be touting him as one of your preferred experts.
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I have indulged you one last time Tim. Not in my expert is better than yours but in your expert does not pass the test of using critical thinking to measure his claims against the best simple data we have. I will not be bothering again. You will continue to thrown expert after expert after expert that support what you believed from before there being any data to go on and will continue to refuse to measure any of them and their claims against what is known or best estimates we have.