Coronavirus (2021) thread

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Had booster booked fr tomorrow am but popped along to Whalley Range tennis club today & from asking if I could have walk in to getting jabbed must’ve taken less than 4 mins.
Remarkable.

I did a new gym class last weight (one of those Pump classes) & my arms were already fucked.
Wish me luck tomorrow!

Had a tight sweater on so had to strip in front of the woman administering the jab (she was gorgeous) & I was nowhere near beach ready.
Had to apologise.
 
grunge said:
40% - 60%.

a mate of mine has had 5 false positives this year.
Click to expand...

Fake news, they’re more than 80% accurate.

On the flip side, friend of mine had symptoms, 3 positive LFTs so did a PCR. Came back negative. More positive LFTs, 2nd PCR was positive.
 
True_Blue69 said:
Fake news, they’re more than 80% accurate.

On the flip side, friend of mine had symptoms, 3 positive LFTs so did a PCR. Came back negative. More positive LFTs, 2nd PCR was positive.
Click to expand...

read the fine print.

“The figure for the Innova test used in the UK was 58%. The tests worked best in the first week after symptom onset.”

“people without symptoms the tests correctly identified an average of 58% of those who were infected. However, the number of samples from asymptomatic people was around 10 times lower than from symptomatic people in the studies analysed, limiting the conclusions that could be drawn, said the authors.”

Conclusion. Not all LFT’s are equal. The UK ones are at most 58%
www.bmj.com

Covid-19: Lateral flow tests are better at identifying people with symptoms, finds Cochrane review

Rapid antigen (lateral flow) tests are better at identifying covid-19 infection in people with symptoms than in those with none, although the diagnostic accuracy of different brands of tests varies widely, a Cochrane review has found.1 The review’s lead author criticised the UK government for...
www.bmj.com www.bmj.com
 
grunge said:
read the fine print.

“The figure for the Innova test used in the UK was 58%. The tests worked best in the first week after symptom onset.”

“people without symptoms the tests correctly identified an average of 58% of those who were infected. However, the number of samples from asymptomatic people was around 10 times lower than from symptomatic people in the studies analysed, limiting the conclusions that could be drawn, said the authors.”

Conclusion. Not all LFT’s are equal. The UK ones are at most 58%
www.bmj.com

Covid-19: Lateral flow tests are better at identifying people with symptoms, finds Cochrane review

Rapid antigen (lateral flow) tests are better at identifying covid-19 infection in people with symptoms than in those with none, although the diagnostic accuracy of different brands of tests varies widely, a Cochrane review has found.1 The review’s lead author criticised the UK government for...
www.bmj.com www.bmj.com
Click to expand...

And you.


Various studies have put the sensitivity of LFTs – in other words, their ability to detect the virus if it is there – at about 40 to 60 per cent. That sounds unhelpfully low, but it is an unfair measure as it compares LFTs to PCR tests, which are arguably too sensitive, says Irene Petersen at University College London. In the weeks following an infection, the cells of the nose and throat can retain fragments of virus genetic material that aren’t infectious, but that can be amplified by the PCR process, leading to a positive result.

Taking this into account, modelling work by Petersen’s team suggests that a study in Liverpool that gave a sensitivity of 40 per cent for LFTs actually indicates that their accuracy is more than 80 per cent.

https://www.newscientist.com/articl...lateral-flow-tests-for-detecting-omicron/amp/
 
True_Blue69 said:
No they’re not
Click to expand...
UK LFT tests are not quite as accurate as PCR tests but can show a false negative if you already have symptoms (up to 40%).
The chance of a false positive is low.
The moral of the story - of you have symptoms take a PCR test!
If you test negative and have symptoms take a PCR test.
If you test positive take a PCR test.
 
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BlueAnorak said:
UK LFT tests are not quite as accurate as PCR tests but can show a false negative if you already have symptoms (up to 40%).
The moral of the story - of you have symptoms take a PCR test!
Click to expand...

Out of curiosity, are you saying then it would take longer for a positive test to show on an lft than a PCR?
 
True_Blue69 said:
Out of curiosity, are you saying then it would take longer for a positive test to show on an lft than a PCR?
Click to expand...
No idea - all I know is their main purpose is to detect asymptomatic cases. The false positive count is low though so if you test positive you more than likely have it.
Get a PCR test to confirm.
 
Churchlawtonblue said:
So cases are clearly not doubling every 2 days like we were told? based on the last fours days numbers.
Either that or the virus is so mild people are not getting tested so they dont have to isolate. Either way its good news. We were also told by the experts they couldn't take the evidence from RSA as it wasn't reliable and wouldnt relate to the UK, but although early days it appears that it is reliable.
Click to expand...
They said Omicron cases would double every two days.
Last 4 days Omicron numbers:

10,000
15,000
25,000
37,000

That’s doubling every 2 days.

Obviously, there’s still no indication of increased hospitalisation, but they’ll be keeping an eye on it.
 
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