schvall
Senior Poster
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Joined: Mar 2011
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RE: Coronavirus - is enough being done to contain it?
(04-04-2020 16:19 )Rake Wrote: Achieving Herd immunity is what is happening all over the world, including Britain
This is undoubtedly not true, because infection rates in all countries are currently nowhere near enough for herd immumnity to be achieved. Nor are projections of deaths. In this country the government are talking about tens of thousands of deaths at the very worst, but estimates of the numbers of deaths needed in the UK for herd immunity to be achieved vary from around a quarter of a million to over a million.
Herd immunity requires between 60% and 80% of the population to become infected, depending on which expert is giving the estimate, but China is rapidly controlling the spread of COVID-19 without requiring anything even close to herd immunity - in fact a mere 0.0057% of its population has been infected so far. Spain now has the most cases in Europe, but still only 0.28% of its population has been infected.
In short, herd immunity is not happening all over the world. It's not even close to happening in any country and it's unlikely to be allowed to happen because the death toll would be so high and because China has shown that the disease can be beaten without it. To achieve herd immunity in China would have required between 5m and 20m deaths, but China is beating the disease and with only 3,329 deaths so far.
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05-04-2020 10:18 |
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Rake
Tipping for nips and panties
Posts: 2,518
Joined: Jan 2016
Reputation: 43
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RE: Coronavirus - is enough being done to contain it?
You are mistaking tested confirmed cases with actual community cases. No one knows the latter until they do proper stratified random sampling testing of the population. It’s looking as if upto 4/5 of cases are entirely asymptomatic according to the latest Chinese research:
https://www.bmj.com/content/369/bmj.m1375
Every country has vast numbers of untested cases who have been infected and recovered. London and the south east is full of people who have had it but never been tested. It is rampant through my workplace but no one’s been tested unless hospitalised. Therefore the real infection rate is vastly higher than the official figures. The mortality rates are therefore far better than simply tested case rates vs fatality rates.
(05-04-2020 10:18 )schvall Wrote: (04-04-2020 16:19 )Rake Wrote: Achieving Herd immunity is what is happening all over the world, including Britain
This is undoubtedly not true, because infection rates in all countries are currently nowhere near enough for herd immumnity to be achieved. Nor are projections of deaths. In this country the government are talking about tens of thousands of deaths at the very worst, but estimates of the numbers of deaths needed in the UK for herd immunity to be achieved vary from around a quarter of a million to over a million.
Herd immunity requires between 60% and 80% of the population to become infected, depending on which expert is giving the estimate, but China is rapidly controlling the spread of COVID-19 without requiring anything even close to herd immunity - in fact a mere 0.0057% of its population has been infected so far. Spain now has the most cases in Europe, but still only 0.28% of its population has been infected.
In short, herd immunity is not happening all over the world. It's not even close to happening in any country and it's unlikely to be allowed to happen because the death toll would be so high and because China has shown that the disease can be beaten without it. To achieve herd immunity in China would have required between 5m and 20m deaths, but China is beating the disease and with only 3,329 deaths so far.
(This post was last modified: 05-04-2020 10:43 by Rake.)
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05-04-2020 10:40 |
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Rake
Tipping for nips and panties
Posts: 2,518
Joined: Jan 2016
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RE: Coronavirus - is enough being done to contain it?
(05-04-2020 11:04 )4waydiablo Wrote: (05-04-2020 10:40 )Rake Wrote: It’s looking as if upto 4/5 of cases are entirely asymptomatic according to the latest Chinese research:
If that turns out to be true, it would still mean an infection rate in China of only 0.0285%. Nowhere near the 60% to 80% required for herd immunity.
Read the paper I linked to. Here's the key quote:
Tom Jefferson, an epidemiologist and honorary research fellow at the Centre for Evidence-Based Medicine at the University of Oxford, said the findings were “very, very important.” He told The BMJ, “The sample is small, and more data will become available. Also, it’s not clear exactly how these cases were identified. But let’s just say they are generalisable. And even if they are 10% out, then this suggests the virus is everywhere. If—and I stress, if—the results are representative, then we have to ask, ‘What the hell are we locking down for?’”
Jefferson said that it was quite likely that the virus had been circulating for longer than generally believed and that large swathes of the population had already been exposed.
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05-04-2020 11:15 |
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