SARS-CoV-2 testing

Covid-19 discussion, bring your own statistics
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Snowbonk
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Re: SARS-CoV-2 testing

Post by headshot » Mon Feb 08, 2021 12:07 pm

Gfamily wrote:
Fri Feb 05, 2021 4:44 pm
Has anyone had a PCR Home testing kit recently?
How much of the 'liquid' was in the sample receiving tube?

At the start of the week I reported a slight ringing in my ears on the Covid Zoe app. Next day I got an email suggesting that although this isn't a 'red flag symptom' for Covid, they would like to invite me to take a PCR home test as part of their study.

This is the second time I've had one of these, the first being back in May (negative result).

The first time, I recall there being no more than about a cm of the liquid in the bottom of the tube; whereas this time the tube was about half full.

What's it been for others?
About 1cm for the four I've done via Zoe.

Huh...ringing in the ears. I had that for a few weeks in late 2020, but didn't report it via Zoe.

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Gfamily
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Re: SARS-CoV-2 testing

Post by Gfamily » Mon Feb 08, 2021 1:03 pm

headshot wrote:
Mon Feb 08, 2021 12:07 pm
Gfamily wrote:
Fri Feb 05, 2021 4:44 pm
This is the second time I've had one of these, the first being back in May (negative result).
The first time, I recall there being no more than about a cm of the liquid in the bottom of the tube; whereas this time the tube was about half full.
What's it been for others?
About 1cm for the four I've done via Zoe.

Huh...ringing in the ears. I had that for a few weeks in late 2020, but didn't report it via Zoe.
I don't think it's a primary red flag for Covid, but I thought it worth reporting - the test came back negative anyway.

I have read someone describe ringing in the ears as a continuing side effect after recovering from a period with Covid
My avatar was a scientific result that was later found to be 'mistaken' - I rarely claim to be 100% correct
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!

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Snowbonk
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Re: SARS-CoV-2 testing

Post by headshot » Mon Feb 08, 2021 1:47 pm

Gfamily wrote:
Mon Feb 08, 2021 1:03 pm
headshot wrote:
Mon Feb 08, 2021 12:07 pm
Gfamily wrote:
Fri Feb 05, 2021 4:44 pm
This is the second time I've had one of these, the first being back in May (negative result).
The first time, I recall there being no more than about a cm of the liquid in the bottom of the tube; whereas this time the tube was about half full.
What's it been for others?
About 1cm for the four I've done via Zoe.

Huh...ringing in the ears. I had that for a few weeks in late 2020, but didn't report it via Zoe.
I don't think it's a primary red flag for Covid, but I thought it worth reporting - the test came back negative anyway.

I have read someone describe ringing in the ears as a continuing side effect after recovering from a period with Covid
TBH, I just put mine down to stress, which has been considerate of late.

I mentioned it in a post on FB and a surprising number of people reported the same.

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shpalman
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Re: SARS-CoV-2 testing

Post by shpalman » Sun Feb 14, 2021 9:38 am

Peter Diamandis, "ENTREPRENEUR. SPEAKER. AUTHOR. INNOVATOR. PHILANTHROPIST." thought that creating a COVID “Immunity Bubble” for a small group in a TV studio setting was possible.

Guess what? It wasn't.
The bottom line is that I am sincerely and deeply sorry for the consequences of the choices we made. As a scientist, engineer and medical person, I believed we were using the very best that science had to offer. And I trusted that an immunity bubble was a “real thing”.

I no longer believe that.

In fact, further investigation into testing has revealed even more curious and concerning data. Once it was clear that I personally had contracted COVID-19 (which sucks as much as everyone says it does), I tested myself with Rapid PCR and Rapid Antigen every day, twice per day, for several consecutive days. I was flabbergasted that NONE of the tests turned up positive. I was consistently negative. Four days into my quarantine, I finally tested positive on a PCR “Spit Test” that measures viral load. I was told I was “highly infectious."
molto tricky

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shpalman
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Re: SARS-CoV-2 testing

Post by shpalman » Thu Feb 18, 2021 3:25 pm

molto tricky

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jimbob
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Re: SARS-CoV-2 testing

Post by jimbob » Thu Feb 18, 2021 3:38 pm

For those wittering about false positives - NSW and Victoria have good Covid testing stats on their dashboards:

https://www.dhhs.vic.gov.au/coronavirus ... nment-area

Image
183,816 tests

https://www.health.nsw.gov.au/Infectiou ... s-nsw.aspx

Image

I make that 188,797 plus 183,816 = 372,613 tests with zero positives.
Have you considered stupidity as an explanation

badger
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Re: SARS-CoV-2 testing

Post by badger » Wed Mar 10, 2021 9:53 pm

So we did these newly available LFT tests today at home, as part of the twice weekly tests for households with kids thing.

After marvelling at being able to get the result there and then, like a pregnancy test, I wondered why I had to go to a special centre to get the testing kits. It seems like a much better idea to hand them out at the school gate. Is it because of safety or just man power?

Anyone know?

I also wondered this because the test centre was empty, not being used for testing, just handing out kits to be used at home. They said uptake had been slow...

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Re: SARS-CoV-2 testing

Post by raven » Thu Mar 11, 2021 11:49 pm

Maybe the logistics of getting the tests to school was awkward? Or the school didn't want lots of parents coming in?

Sister's school was initially saying you'd have to pick the LF tests up at a test centre, but then they said they'd do it at school I think. Idk if that's what happened; haven't spoken to her yet this week. (She's been doing twice weekly lateral flow tests at home for a while, 'cos she's on staff.)

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bob sterman
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Re: SARS-CoV-2 testing

Post by bob sterman » Fri Mar 12, 2021 9:45 am

So it seems the UK daily new case numbers have stopped falling.

But presumably this is due to the massive increase in LF testing at schools this week? Positive cases identified via that route are getting included in the daily totals aren't they?

badger
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Re: SARS-CoV-2 testing

Post by badger » Fri Mar 12, 2021 11:06 am

raven wrote:
Thu Mar 11, 2021 11:49 pm
Maybe the logistics of getting the tests to school was awkward? Or the school didn't want lots of parents coming in?

Sister's school was initially saying you'd have to pick the LF tests up at a test centre, but then they said they'd do it at school I think. Idk if that's what happened; haven't spoken to her yet this week. (She's been doing twice weekly lateral flow tests at home for a while, 'cos she's on staff.)
yes, probably logistics. My kids are both primary, where most parents come in (or rather drop at the gate).

Thinking about it, there may be also be a waste issue, where parents feel obliged to take the kits then they sit at home and are never used or just dumped in the bin one the way home. There's a real resistance to doing them, anecdotally because of the difficulty of swabbing a child (which I sympathise with - it's hard to do even remotely correctly, as in to the letter of the instructions, and often kids hate it and their resistance can be intense).

People going to collect kits at the test centre are almost definitely intending to use them.

raven
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Re: SARS-CoV-2 testing

Post by raven » Sat Mar 13, 2021 10:55 am

That makes sense. I'm thinking fewer primary parents will be up for testing their kids regularly too. Sister's school does have boxes of test kits on site, but not a lot of parents are picking them up so far.

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shpalman
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Re: SARS-CoV-2 testing

Post by shpalman » Sun Apr 18, 2021 12:50 pm

the Guardian explains Bayes's theorem

To be fair, it should be taught to more people. I mention it in my masters' course.
molto tricky

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JQH
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Re: SARS-CoV-2 testing

Post by JQH » Sun Apr 18, 2021 3:50 pm

shpalman wrote:
Sun Apr 18, 2021 12:50 pm
the Guardian explains Bayes's theorem

To be fair, it should be taught to more people. I mention it in my masters' course.
It certainly should. I remember a few years back there being demands for mass testing for HIV/AIDS. Fortunately didn't happen partly through it being pointed out that there would be a truly enormous number of false positives.
And remember that if you botch the exit, the carnival of reaction may be coming to a town near you.

Fintan O'Toole

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