Increase of conflicting lateral flow and PCR test results.
Discussion
Anyone else seeing this?
https://inews.co.uk/news/covid-lateral-flow-pcr-te...
In my house three are showing symptoms and tested positive with lateral flow tests but only one got a positive PCR test. Seems like it’s quite a common phenomenon at the moment but difficult for schools who often go by the PCR result. Kids are going in after a negative PCR and lots more kids and teachers, are getting ill. Schools can’t tell kids to stay home with a negative PCR result.
Same happened with my wife and I getting positive lateral flows and negative PCR but both showing mild symptoms.
Also employees often need a positive PCR result for work when people are isolating.
https://inews.co.uk/news/covid-lateral-flow-pcr-te...
In my house three are showing symptoms and tested positive with lateral flow tests but only one got a positive PCR test. Seems like it’s quite a common phenomenon at the moment but difficult for schools who often go by the PCR result. Kids are going in after a negative PCR and lots more kids and teachers, are getting ill. Schools can’t tell kids to stay home with a negative PCR result.
Same happened with my wife and I getting positive lateral flows and negative PCR but both showing mild symptoms.
Also employees often need a positive PCR result for work when people are isolating.
El stovey said:
Anyone else seeing this?
https://inews.co.uk/news/covid-lateral-flow-pcr-te...
In my house three are showing symptoms and tested positive with lateral flow tests but only one got a positive PCR test. Seems like it’s quite a common phenomenon at the moment but difficult for schools who often go by the PCR result. Kids are going in after a negative PCR and lots more kids and teachers, are getting ill. Schools can’t tell kids to stay home with a negative PCR result.
Same happened with my wife and I getting positive lateral flows and negative PCR but both showing mild symptoms.
Also employees often need a positive PCR result for work when people are isolating.
Aren't PCR tests considered the more accurate? I think they're meant to be more resistant to poor application of the swabs etc.https://inews.co.uk/news/covid-lateral-flow-pcr-te...
In my house three are showing symptoms and tested positive with lateral flow tests but only one got a positive PCR test. Seems like it’s quite a common phenomenon at the moment but difficult for schools who often go by the PCR result. Kids are going in after a negative PCR and lots more kids and teachers, are getting ill. Schools can’t tell kids to stay home with a negative PCR result.
Same happened with my wife and I getting positive lateral flows and negative PCR but both showing mild symptoms.
Also employees often need a positive PCR result for work when people are isolating.
What symptoms are you showing? The challenge with this time of year is that people will get colds and symptoms that are nowt to do with Covid. I think common sense needs to apply personally - keep kids off school if they're unwell. Usual runny nose/sniffles are par for the course.
Murph7355 said:
Aren't PCR tests considered the more accurate? I think they're meant to be more resistant to poor application of the swabs etc.
What symptoms are you showing? The challenge with this time of year is that people will get colds and symptoms that are nowt to do with Covid. I think common sense needs to apply personally - keep kids off school if they're unwell. Usual runny nose/sniffles are par for the course.
possibly but possibly not lateral flow tests are very good at picking up infectious people apparently...What symptoms are you showing? The challenge with this time of year is that people will get colds and symptoms that are nowt to do with Covid. I think common sense needs to apply personally - keep kids off school if they're unwell. Usual runny nose/sniffles are par for the course.
https://www.google.co.uk/amp/s/www.bbc.com/news/he...
Some LFT tests are just better than the average crap being given away/sold to the market......
https://avacta.com/update-on-affidx-sars-cov-2-ant...
Avacta use an affirmer to detect the virus, the good thing about that it is an engineered enzyme that will only bind to that virus so if it's there it will find it..... this was first launched as being 99% specific, but as it's been used and more data is received it's now 99.7% sepecific.
https://avacta.com/update-on-affidx-sars-cov-2-ant...
Avacta use an affirmer to detect the virus, the good thing about that it is an engineered enzyme that will only bind to that virus so if it's there it will find it..... this was first launched as being 99% specific, but as it's been used and more data is received it's now 99.7% sepecific.
IMO the obsession with testing is making things worse especially as the lateral flow tests may or may not be that accurate.
For example in our household, my girlfriend tested positive on a lateral flow test and positive on a PCR test, my 3 year old tested negative on a lateral flow test many times but positive on a PCR (and he only had one because his pre school insisted).
In the case of my girlfriend, she felt rough - flu like with no smell/taste so stayed in as was in no state to go to work anyway. The 3 year old was his normal self and you wouldn't have known any different.
For example in our household, my girlfriend tested positive on a lateral flow test and positive on a PCR test, my 3 year old tested negative on a lateral flow test many times but positive on a PCR (and he only had one because his pre school insisted).
In the case of my girlfriend, she felt rough - flu like with no smell/taste so stayed in as was in no state to go to work anyway. The 3 year old was his normal self and you wouldn't have known any different.
From BBC News this morning:
“ NHS suspends testing at Wolverhampton lab over false negatives
NHS Test and Trace has suspended testing operations provided by Immensa Health Clinic Ltd at its laboratory in Wolverhampton.
It follows an investigation into reports of people receiving negative PCR test results after testing positive with a lateral flow test.
Investigations are under way into the precise cause but NHS Test and Trace estimates that around 400,000 samples have been processed through the lab.
The vast majority of these will have been negative results, but an estimated 43,000 people may have been given incorrect negative PCR test results between 8 September and 12 October, mostly in south-west England.”
“ NHS suspends testing at Wolverhampton lab over false negatives
NHS Test and Trace has suspended testing operations provided by Immensa Health Clinic Ltd at its laboratory in Wolverhampton.
It follows an investigation into reports of people receiving negative PCR test results after testing positive with a lateral flow test.
Investigations are under way into the precise cause but NHS Test and Trace estimates that around 400,000 samples have been processed through the lab.
The vast majority of these will have been negative results, but an estimated 43,000 people may have been given incorrect negative PCR test results between 8 September and 12 October, mostly in south-west England.”
djc206 said:
From BBC News this morning:
“ NHS suspends testing at Wolverhampton lab over false negatives
NHS Test and Trace has suspended testing operations provided by Immensa Health Clinic Ltd at its laboratory in Wolverhampton.
It follows an investigation into reports of people receiving negative PCR test results after testing positive with a lateral flow test.
Investigations are under way into the precise cause but NHS Test and Trace estimates that around 400,000 samples have been processed through the lab.
The vast majority of these will have been negative results, but an estimated 43,000 people may have been given incorrect negative PCR test results between 8 September and 12 October, mostly in south-west England.”
Presumably that means that 43,000 people have been carrying on life as normal after being Covid positive.“ NHS suspends testing at Wolverhampton lab over false negatives
NHS Test and Trace has suspended testing operations provided by Immensa Health Clinic Ltd at its laboratory in Wolverhampton.
It follows an investigation into reports of people receiving negative PCR test results after testing positive with a lateral flow test.
Investigations are under way into the precise cause but NHS Test and Trace estimates that around 400,000 samples have been processed through the lab.
The vast majority of these will have been negative results, but an estimated 43,000 people may have been given incorrect negative PCR test results between 8 September and 12 October, mostly in south-west England.”
So by normal extrapolation the rates of COVID in that area should rocket?
Any bets on that not happening?
Several colleagues have been hit by this (I'm in Bath) in the past week. They were told that false-positive LFTs are extremely unlikely, so it was either an issue with the PCR or less likely - a new strain that for some reason is causing issues with tests. Either way, they were all aware it was 99.9% certain they had COVID.
- Symptoms
- Multiple positive LFT tests
- Negative PCR test
- Another negative PCR test
They were all told to isolate anyway, but officially there is no support or requirement to do so, thankfully our employer has been understanding but I'm sure there are many that haven't been so accomodating or willing to isolate, particularly as it comes at a time when a 'super-cold' seems to be doing the rounds down here anyway.
- Symptoms
- Multiple positive LFT tests
- Negative PCR test
- Another negative PCR test
They were all told to isolate anyway, but officially there is no support or requirement to do so, thankfully our employer has been understanding but I'm sure there are many that haven't been so accomodating or willing to isolate, particularly as it comes at a time when a 'super-cold' seems to be doing the rounds down here anyway.
Edited by ch37 on Friday 15th October 09:53
Cold said:
Drawweight said:
Presumably that means that 43,000 people have been carrying on life as normal after being Covid positive.
So by normal extrapolation the rates of COVID in that area should rocket?
Any bets on that not happening?
Nah, they're all wearing masks, you see. So by normal extrapolation the rates of COVID in that area should rocket?
Any bets on that not happening?
That said I have personal experience here: One of the players at my son's football team returned a positive LFT on Thursday and then a negative PCR on Friday so came to football on the Saturday. My son then crashed in terms of energy (sleeping 16 hours a day and barely getting off the sofa from Sunday lunchtime until yesterday evening when normally he lives for sports) and returned a positive LFT on Monday morning, we took him to get a PCR done on the Monday lunchtime (and did them ourselves at the same time and it was negative and today he's back in school because that's is / was the guidance.
Yesterday my wife experienced the same lack of energy so spent the day in bed. Today we have been notified that our PCR results may be invalid so took LFT's, my wife's is positive so she's now gone to do another PCR.
Assuming the PCR is positive then I understand there are plenty of other ways that we could have caught Covid so to me this looks like an example of at least 2 cases that would have been prevented in the event of the PCR test being done correctly and that's assuming we haven't passed it on to anyone else so I'd say yes this will cause cases to rise but who knows by how much.
Drawweight said:
Presumably that means that 43,000 people have been carrying on life as normal after being Covid positive.
So by normal extrapolation the rates of COVID in that area should rocket?
Any bets on that not happening?
Sounds like a massive area that they covered. That’s 1 days worth of positives for the whole country so I can’t imagine it being particularly meaningful although it is a tad embarrassing.So by normal extrapolation the rates of COVID in that area should rocket?
Any bets on that not happening?
So the PCR re-tests revealed that both my wife and son have Covid son was in school for 3 days (and now he's off for the remainder of the 10 days!) so it's likely that be passed that around. The school have reported high numbers across the board, my daughters class had 9 of 26 off school earlier this week.
I see that the numbers for the South West from 7-14 October showed huge increases and that was before re-tests were done (not to mention the number of people who no doubt didn't get re-tested) so goodness knows what next weeks numbers will be like whereas the rest of England is more or less level (exclude the SW numbers from the average!)
I see that the numbers for the South West from 7-14 October showed huge increases and that was before re-tests were done (not to mention the number of people who no doubt didn't get re-tested) so goodness knows what next weeks numbers will be like whereas the rest of England is more or less level (exclude the SW numbers from the average!)
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