allmodcons
Well-Known Member
A relation of mine was taken to hospital by ambulance with all the symptoms of covid, she was tested three times in hospital, first two tests came back negative, third came back positive. These tests are a joke !!
A relation of mine was taken to hospital by ambulance with all the symptoms of covid, she was tested three times in hospital, first two tests came back negative, third came back positive. These tests are a joke !!The false positives with community testing are running at an average of 2.5% - that just happens to be slightly less than the percentage who are testing positive every day in Scotland. Bearing in mind a small number of these are hospital tests which are far more accurate and community testing is clustered in areas with so called spikes - I’d suggest many of the 260 odd +ve tests (not cases) in Scotland today are false.
We’re being taken for a ride by politicians who are using fear to shroud the (decreasing) risk of them missing a second wave.
stats are all there if people whose to look at them
A relation of mine was taken to hospital by ambulance with all the symptoms of covid, she was tested three times in hospital, first two tests came back negative, third came back positive. These tests are a joke !!
Looks like the bold Scottish CMO was correct in his prediction that the Covid Tests are a "bit rubbish" the 3 Hamilton Accies players who tested positive yesterday are now negative after 3 false positives. How anyone can trust these test figures is beyond me.
Mental, eh.Reading this article would make me think it’s far higher: https://www.stornowaygazette.co.uk/...positive-cases-covid-19-western-isles-2962518
I'd imagine there will be some form of 'selective' tendering for the Covid testing contract within the SFA/SPFL, there usually is.What the chances its a Tim giving out the initial test results?
Where are you taking the 2.5% for false positives from?The false positives with community testing are running at an average of 2.5% - that just happens to be slightly less than the percentage who are testing positive every day in Scotland. Bearing in mind a small number of these are hospital tests which are far more accurate and community testing is clustered in areas with so called spikes - I’d suggest many of the 260 odd +ve tests (not cases) in Scotland today are false.
We’re being taken for a ride by politicians who are using fear to shroud the (decreasing) risk of them missing a second wave.
stats are all there if people chose to look at them
Where are you taking the 2.5% for false positives from?
A high proportion I'd guess. PCR tests are almost meaningless as they find fragments of the virus from up to 9 weeks back from point of infection.I wonder how many tests out in the general population are like this?
You're results are positive but you actually aren't.
Cheers for the link. Was interested to see if something Covid-19 specific had been published. The 2.3% rate is an estimate based on other viral RNA PCR tests.it’s a median figure for the range found with PCR tests (2.3% my mistake)
But if you were just to use SPFL examples as a measure you’d get a far higher percentage. There are various issues with these tests - apparently we have a higher threshold for what constitutes a positive than other countries. They run cycles to get positive signal from sample - above 30 cycles and you are getting into very weak territory, certainly asymptomatic and probably a remnant from having the virus before or even an old cold. I saw a graph a few days ago that showed a large proportion (I’d say just under half) of tests needing over 30 cycles to produce a signal.
but for me, the biggest thing we’re ignoring is our own common sense and instincts. It’s obvious the virus is a) nothing like as deadly as we first though and treatment means we’re even less likely to die of it than we were before (something like 6% of hospitalised folks died in March, now it’s 1.5-%) and (b) there’s no epidemic any more. Humans know how to deal with viruses and have done for millions of years, but today we've outsourced this instinct to professionals and politicians with personal reputations and agendas (as all professionals and politicians always have, this is nothing new).
the repeated SPFL false positives is an obvious indicator of our over reaction IMO
Cheers for the link. Was interested to see if something Covid-19 specific had been published. The 2.3% rate is an estimate based on other viral RNA PCR tests.
There is a lack of consensus around the cycle threshold that should be used yeah but it's difficult to set it without much data. The correlation between viral load and ability to spread isn't known. PHE are apparently setting guidelines soon however, from what I understand.
Too high a threshold does risk detecting levels of Covid-19 that are too low to be infective or recent remnants but the virus is still there. You won't get a false positive due to an infection with the common cold however.
Like most things in life, taking the SPFL as an example is probably a bad idea
We seem to be returning a number of "false" positives compared to other leagues. Whether that's down to the companies that our teams are outsourcing to (and perhaps thier already discussed cycle thresholds) or what it is, I'm not sure. I don't have the figures to hand but I certainly don't recall premier League teams reporting such high numbers of positives, be them false or otherwise.
Cheers for the link. Was interested to see if something Covid-19 specific had been published. The 2.3% rate is an estimate based on other viral RNA PCR tests.
There is a lack of consensus around the cycle threshold that should be used yeah but it's difficult to set it without much data. The correlation between viral load and ability to spread isn't known. PHE are apparently setting guidelines soon however, from what I understand.
Too high a threshold does risk detecting levels of Covid-19 that are too low to be infective or recent remnants but the virus is still there. You won't get a false positive due to an infection with the common cold however.
Like most things in life, taking the SPFL as an example is probably a bad idea
We seem to be returning a number of "false" positives compared to other leagues. Whether that's down to the companies that our teams are outsourcing to (and perhaps thier already discussed cycle thresholds) or what it is, I'm not sure. I don't have the figures to hand but I certainly don't recall premier League teams reporting such high numbers of positives, be them false or otherwise.
The water and papaya testing positive for Covid-19 was from a testing lab in Tanzania.yes there’s not enough data on the reliability of Covid testing but anecdotal stuff does appear quite damning - plus studies where they were getting signals from water etc.
I might well be mixing up separate issues re:common cold. That was a study re: antibodies which may be effective against COVID I think?