Originally posted by Anastasius
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Coronavirus
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There was quite a good programme on Channel 4 last night, where several genuine medical experts were present (either well-spaced or online). They tried to leave out politics. The general consensus was that there is little known with certainty about Covid 19, except that they hope it might be one of the 'simpler' viruses to overcome with vaccines. Towards the end, one theory was that the extreme reactions seen in some patients are caused by an over-aggressive immune system, i.e. their own 'defence' antibodies work on overdrive and destroy lung and other tissues. So they are, somewhat counter-intuitively, trialling some immuno-suppressant drugs among volunteers.
Comment: The programme (Can Science Beat the Virus?) is annoyingly interrupted by very long ad-breaks. For this reason I seldom watch Ch4 except for the excellent 7pm News.
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Originally posted by LMcD View PostDon't forget, were awl innit togevver like.
A spokesman for GPs, interviewed on 'Today' earlier this morning, was of the view that there's no need for members of the general public to wear a mask if they're fit and well and follow the government's instructions. (I imagine it would also make life even more difficult for sub-titlers!)
The purpose of people wearing face masks is not to protect themselves but to protect others around them and reduce the person to person transmission. It has been established that people shed the virus in the early stages of the disease when they are asymptomatic,, i.e. when they feel fit and well.
Wearing face masks would only be effective if the great majority of people did so, therefore it would make sense to make it compulsory especially in crowded environments such as trains, buses, shops, etc. There is little point in individuals wearing masks if the majority of other people don't.
The main argument against making the wearing of face masks compulsory in crowded places is the supply problem, i.e. that it would make it even more difficult to procure sufficient masks for health and care workers.
No doubt the government will eventually find the "scientific advice" has changed in a few weeks time - just as it has done with test and trace, lockdowns, etc, etc. (I suspect the test & trace was abandoned early on because there weren't sufficient testing and tracing resources at the time, rather than for scientific reasons.)
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Originally posted by johnb View Post. . . I didn't hear the interview but what you say begs a number of questions.
The purpose of people wearing face masks is not to protect themselves but to protect others around them and reduce the person to person transmission. It has been established that people shed the virus in the early stages of the disease when they are asymptomatic,,,i.e. when they feel fit and well.
Wearing face masks would only be effective if the great majority of people did so, therefore it would make sense to make it compulsory especially in crowded environments such as trains, buses, shops, etc. There is little point in individuals wearing masks if the majority of other people don't.
The main argument against making the wearing of face masks compulsory in crowded places is the supply problem, i.e. that it would make it even more difficult to procure sufficient masks for health and care workers.
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Originally posted by Bryn View PostThat's but one of the main arguments. Others are that the wearing of masks in public increases the chances of face-touching, and may give a false sense of security, leading to lax hand-washing, etc. Instructions re home-made mass can be found at various places on the Internet, e.g. https://www.theguardian.com/us-news/...sk-coronavirus for those who feel the need.
As far as making one's own face masks - that is of little benefit unless the great majority of other people are also wearing them. For that to happen it needs government leadership <cue for laughter and ribald comments>.
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Originally posted by johnb View PostThose arguments need to be weighed against the benefits. I suspect the UK approach is heavily influenced by the prevailing culture as much as anything else.
As far as making one's own face masks - that is of little benefit unless the great majority of other people are also wearing them. For that to happen it needs government leadership <cue for laughter and ribald comments>.
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Originally posted by Dave2002 View PostBut the “benefits” are themselves uncertain, and arguably low for most people. Or so I’ve heard.
There don't seem to be any definitive trials reported in the medical media but that is probably not unexpected given the difficulty of conducting such trials in a meaningful way, however the countries who have best contained the virus have gone down, or are going down, that route. T
he following two articles might be of interest. Both advocate seriously considering the use of face masks on the precautionary principal:
Trisha Greenhalgh and colleagues argue that it is time to apply the precautionary principle The precautionary principle is, according to Wikipedia, “a strategy for approaching issues of potential harm when extensive scientific knowledge on the matter is lacking.” The evidence base on the efficacy and acceptability of the different types of face mask in preventing respiratory infections during epidemics is sparse and contested.12 But covid-19 is a serious illness that currently has no known treatment or vaccine and is spreading in an immune naive population. Deaths are rising steeply, and health systems are under strain. This raises an ethical question: should policy makers apply the precautionary principle now and encourage people to wear face masks on the grounds that we have little to lose and potentially something to gain from this measure?3 We believe they should. Evidence based medicine tends to focus predominantly on internal validity—whether primary research studies were “done right”—using tools to assess risk of bias and adequacy of statistical analysis. External validity relates to a different question: whether findings of primary studies done in a different population with a different disease or risk state are relevant to the current policy question. We argue that there should be a greater focus on external validity in evaluation of masks. A rapid search of the literature on the wearing of masks by the general public during epidemics or pandemics by a team at the University of Galway (E Toomey, personal communication, 29 March 2020) found five peer reviewed systematic reviews:
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Originally posted by johnb View Post.... however the countries who have best contained the virus have gone down, or are going down, that route.
https://www.thelancet.com/journals/l...918-1/fulltext
Those countries may have tried ten or more methods all in parallel, so perhaps not possible (necessarily) to determine how effective each method is, or why. Actually even if they tried just a couple of methods, there would still be confusion.
The precautionary principle is OK sometimes, but surely only if there's a reasonably sound basis for a particular approach.
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There is also the public perception angle to consider perhaps? The use of masks makes sense to many as it's a barrier(whether in or out hardly matters) and is something an individual can do to achieve a modicum of action and control in a scary situation. Scientific argument has always faced an uphill battle against what the public sees(courtesy of dubious sources more often than not) as sense or fact. The very obvious differences of opinion within the science community about Covid 19 don't help, even though they are understandable and inevitable.
The lockdown restrictions and social distancing, even if grumbled about, make sense to the majority I think, and the mask issue is in some respects seen as a logical add-on.
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Originally posted by Pulcinella View PostShould we all be chanting “Give them PPE” at 8pm?
https://www.theguardian.com/commenti...ng-protect-nhs
Furthermore it is a gross insult to those who are dying whilst trying to save peoples lives to see the likes of Raab and co applauding
don't forget their cheers when this happened
Just 3 years ago, during savage cuts to the NHS, Tories blocked a pay rise for nurses. All but one Tory MP voted against it.
we see you, you pile of $&^@
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Originally posted by MrGongGong View PostClapping and supporting the current government is about as logical as being a vegan butcher.
Furthermore it is a gross insult to those who are dying whilst trying to save peoples lives to see the likes of Raab and co applauding
don't forget their cheers when this happened
Just 3 years ago, during savage cuts to the NHS, Tories blocked a pay rise for nurses. All but one Tory MP voted against it.
we see you, you pile of $&^@
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