Pennington mentions that a 'relapse' in Singapore can be explained away as a cluster caused by migrant workers' living conditions. Strangely in an article dated 1 June he doesn't mention the rise in cases in Iran which looks as if it's been going on for most of May.This quote is hidden because you are ignoring this member. Show Quote
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Thread: Coronavirus
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02-06-2020 07:26 PM #12811
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02-06-2020 07:37 PM #12812This quote is hidden because you are ignoring this member. Show QuotePM Awards General Poster of The Year 2015, 2016, 2017. Probably robbed in other years
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02-06-2020 07:46 PM #12813This quote is hidden because you are ignoring this member. Show Quote
The functions of a Covid-19 press conference seem to be to transmit information, praise the indefatigable, and brandish a doom‑laden cudgel at the public. A common theme is that if virus-control measures are not observed, or are relaxed too soon, there will be a second “wave” or “peak” of infections.
In the UK, an often-repeated prognostication has been that this second wave might be more virulent than the first and that the NHS would be overwhelmed. The message from Geneva during the World Health Organisation’s press briefing on May 25 was more nuanced, but of the same ilk. The point was made that the decline in cases in many countries has been due to the control measures, rather than to the virus running out of steam of its own accord, and that relaxing them could lead to an immediate second peak for which we should get ready.
I am a second-wave sceptic. I said so in evidence to the Scottish Parliament’s health and sport committee in April, and was criticised by Nicola Sturgeon for it.
I started my virological career working on viruses spread by the respiratory route and was mentored at that time by June Almeida, the discoverer of human coronaviruses. I consider that the evidence supporting the notion of a second wave or peak of Covid-19 infections in the UK that would swamp the NHS is very weak. If we get the easing of lockdown wrong, far more likely would be a continuation of infections, many in the form of localised outbreaks, but not waves or peaks.
The idea of a devastating second wave comes almost entirely from the 1918 Spanish flu pandemic. The first wave occurred in June and July and the second in October and November. The first was mild and the second was lethal. It is yet to be explained why the infections occurred in waves and why the virus faded away after the first and then returned.
Mathematical modelling textbooks do not discuss it. There was no effective social distancing in 1918 and it had nothing to do with herd immunity. It is possible that the first-wave virus differed genetically from the one that caused the second, but this is an entirely speculative theory because no virus samples from the first are available for scientists to test – influenza virus wasn’t discovered until 1933.
Subsequent flu pandemics have been much less lethal. The Asian flu second wave was less lethal than the first. Hong Kong flu in 1968-69 caused fewer deaths but had a second wave that killed more in Britain than the first (though the first was more lethal in America). And swine flu in 2009 killed 10 in its first wave and 137 in its second.
Flu is very different from Covid-19. Although both are commonly spread by the respiratory route, and both have infected prime ministers (David Lloyd George got the Spanish flu), the more we learn about Covid-19, the less its biology and epidemiology resemble that of flu.
There have been no flu-like second waves (or even peaks) in China, South Korea or New Zealand. There was no second wave with Sars, another coronavirus.
In the absence of controls, flu has an R rate of seven; Covid-19’s is between two and three. And far more than with flu, Covid-19 cases have very commonly occurred in clusters. In New Zealand (which may well have eradicated the virus), 41 per cent of cases occurred in 16 clusters of 13 or more cases in each. And, sadly, in the UK the virus has taken an enormous toll on residents of care homes, many of which have had multiple cases.
The only country so far to have made a good start with virus control and then suffered a relapse has been Singapore, when the virus got into the migrant-worker dormitories in which infection control and social distancing was almost impossible (just as in British care homes).
Defeatist flu models still lurk behind current Covid-19 predictions. That the virus will persist for ages is a flu concept. These predictions should be put to one side. Like Sars, and unlike flu, the virus is eradicable. If China and New Zealand are striving to be free of it, we should be, too.
Hugh Pennington is emeritus professor of bacteriology at the University of Aberdeen
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02-06-2020 08:11 PM #12814This quote is hidden because you are ignoring this member. Show Quote
My title is professor of environmental economics, but I've never studied economics in my puff!
It's an interesting article for sure, but his conclusions aren't really founded on any empirical research. Which was probably why the FM dismissed his concerns...if the active researchers investigating Covid-19 see it as a significant risk, I'd be inclined to listen to them who work in the field day in, day out.
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02-06-2020 08:21 PM #12815This quote is hidden because you are ignoring this member. Show Quote
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02-06-2020 08:34 PM #12816This quote is hidden because you are ignoring this member. Show Quote
I’m not really sure exactly what point he’s trying to make. Is he saying he doesn’t expect a mutated form of the virus or just that he expects it to fade away by itself? It’s really not very clear.
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02-06-2020 08:40 PM #12817This quote is hidden because you are ignoring this member. Show Quote
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02-06-2020 08:44 PM #12818
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Secondly, and more importantly, it's about filling the house with Tory voices, as mentioned above. It has the dual benefit of making it very difficult for MPs from distant constituencies (Scotland anyone?) who need to travel to London during lockdown, find places to say while down there, find places to eat while down there. It's all about reminding opposition MPs that whatever they do they can't beat the Govt because of their majority. And you can forget being adequately represented by any MP who is disabled, or shielding, or caring.
I, and I suspect many on this board, are no longer represented by an MP in Parliament. We have been disenfranchised overnight.
This is just the start - keep watching for a range of actions which the Tories will put in place which will erode our democratic rights. Only today they announced they are stopping weekend virus press conferences. If they could get away with it, this Govt would do everything behind closed doors and not tell us what's going on. And just remember, Brexit was all about regaining our sovereignty, right? Yeah right. F that.Last edited by grunt; 02-06-2020 at 08:48 PM.
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02-06-2020 08:44 PM #12819This quote is hidden because you are ignoring this member. Show Quote
I'm not sure he's talking about a mutation as such, but rather a reoccurrence due to increased social activity. That's how it read to me at least.
That's not me taking a stance on what he's said fwiw.
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02-06-2020 08:54 PM #12820This quote is hidden because you are ignoring this member. Show Quote
Anyway, he’s not keeping up to date with latest estimates of R0. This says 5-6 rather than 2-3.
https://www.harvardmagazine.com/2020/05/r-nought
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02-06-2020 09:01 PM #12821
Devi Sridhar on twitter:
So instead of preparing & preventing a second wave of infections, prevailing opinion in UK & US seems to be: maybe this virus will go away, let's wait & see. Isn't this the Jan-March mindset that got both countries into the position they are in? Highest death #s in the world.
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02-06-2020 09:03 PM #12822
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02-06-2020 09:06 PM #12823This quote is hidden because you are ignoring this member. Show Quote
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02-06-2020 09:09 PM #12824This quote is hidden because you are ignoring this member. Show Quote
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02-06-2020 09:30 PM #12825This quote is hidden because you are ignoring this member. Show Quote
There is e-coli in our gut doing wonders unlike all virus which are bad.Last edited by Moulin Yarns; 02-06-2020 at 09:39 PM.
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02-06-2020 09:32 PM #12826This quote is hidden because you are ignoring this member. Show Quote
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02-06-2020 09:36 PM #12827This quote is hidden because you are ignoring this member. Show Quote
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02-06-2020 09:40 PM #12828This quote is hidden because you are ignoring this member. Show QuoteThere is no such thing as too much yarn, just not enough time.
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02-06-2020 09:41 PM #12829This quote is hidden because you are ignoring this member. Show Quote
I do read that the number of confirmed infections has dropped quite significantly week on week but I’m told that the R is still close to one. Can the more enlightened on here explain this?
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02-06-2020 09:43 PM #12830
Whilst his finest work might have been on bacteria, you don't get the sort of qualifications Prof Pennington has without having a fair old understanding of how viruses work as well.
I wouldn't be dismissing his opinion in a hurry.
Important though to remember that all this is is an opinion - you will find someone equally well qualified or more who will hold a different opinion.
This is a novel virus and whilst our knowledge of it is growing, we still know scarily little.
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02-06-2020 09:45 PM #12831This quote is hidden because you are ignoring this member. Show Quote
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02-06-2020 09:50 PM #12832This quote is hidden because you are ignoring this member. Show Quote
Nothing more or less than that.
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02-06-2020 09:50 PM #12833This quote is hidden because you are ignoring this member. Show Quote
The current effective R must be below 1 as you say. I guess if you assume the fatality rate is constant you could try and estimate it for between different weeks on the graphs. I can have a go tomorrow if you like but I suspect the fatality rate will have varied due to prevalence of clusters in care homes etc
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02-06-2020 09:55 PM #12834This quote is hidden because you are ignoring this member. Show Quote
Can we maintain control? Maybe.
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02-06-2020 09:57 PM #12835This quote is hidden because you are ignoring this member. Show Quote
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02-06-2020 09:59 PM #12836
https://www.ft.com/content/a3fe315f-...c-a466a7f33aa1
I also see that the FT is now gunning for the Scot Govt.
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02-06-2020 10:02 PM #12837This quote is hidden because you are ignoring this member. Show Quote
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02-06-2020 10:21 PM #12838This quote is hidden because you are ignoring this member. Show Quote
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03-06-2020 03:24 AM #12839This quote is hidden because you are ignoring this member. Show Quote
Former Scottish Conservative leader Ruth Davidson has accused Ms Sturgeon of putting potentially infected patients in “an enclosed environment of incredibly vulnerable people” leading to a care home death rate “more than double” that of England.
But while the proportion of Covid-19 deaths occurring in Scottish care homes is substantially higher than in England and Wales, FT analysis shows excess deaths — the increase over the average for the time of year — has actually been slightly lower than south of the border.
Deaths officially recorded as coronavirus-related account for 74 per cent of all excess care home deaths in Scotland, but only 48 per cent in England and Wales, suggesting authorities there are missing many coronavirus fatalities.
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03-06-2020 06:21 AM #12840This quote is hidden because you are ignoring this member. Show Quote
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