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Rapid Covid tests miss 90% of asymptomatic cases

nature.com

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Re: Rapid Covid tests miss 90% of asymptomatic cases

#81

Post by cmrdporcupine »

Even symptomatic they've been pretty useless for our family. My daughter was sick with 'rona twice last year (the rest of us seem to have never gotten it) and in both cases it barely registered visually just once on the tests after doing many many tests that showed negative. So I wonder how many times they've shown us false negatives.

My wife has suddenly just now become ill with something fever/fluish and it's testing negative, but I really have to wonder.

Impossible to get a PCR test here in Ontario for over two years now though.

Re: Rapid Covid tests miss 90% of asymptomatic cases

#82

Post by Sparkle-san »

hospitalJail wrote: post #68
b0dhimind wrote: post #56

We are all "asymptomatic" with something. Asymptomatic people don't spread as easily anyways. Typical fearmongering tyranny propaganda to inculcate fear into society, simultaneously scaring unhealthy people and leading to policies to inhibit healthy people.

Not to mention, I think people are going to look back at something with a 1% death rate and wonder why we panicked so hard. Various winter viruses kill on the same order of magnitude, and they kill the same old, obese, sick population. I'm a bit worried we will have something awful, killing healthy people or large swaths 5-20% of the population, and we will be too desensitized to care. It def seems like it was a poli…

COVID was the 3rd leading cause of death in 2020 and 2021 in the US and kills an order of magnitude more than the flu typically does.

Re: Rapid Covid tests miss 90% of asymptomatic cases

#83

Post by peyton »

gjulianm wrote: post #73
hospitalJail wrote: post #68

Earlier quoted context omitted.

Not to mention, I think people are going to look back at something with a 1% death rate and wonder why we panicked so hard. Various winter viruses kill on the same order of magnitude, and they kill the same old, obese, sick population. I'm a bit worried we will have something awful, killing healthy people or large swaths 5-20% of the population, and we will be too desensitized to care. It def seems like it was a poli…

> Not to mention, I think people are going to look back at something with a 1% death rate and wonder why we panicked so hard. I'm sorry, but what the hell are you talking about? In my city there were so many dead people they had to transform a skating rink into a morgue. ER rooms were completely overcrowded, COVID took so much effort to fight in hospitals that other diseases got later diagnoses and treatments, which…

My city had none of those problems. COVID standard of care w.r.t. intubation was uniquely terrible. Disrupting the daily routines of elders in nursing homes is well-known to drive mortality.

Re: Rapid Covid tests miss 90% of asymptomatic cases

#84

Post by dboreham »

tinco wrote: post #27
BoxFour wrote: post #16

Earlier quoted context omitted.

Indeed, it appears that this is somewhat redundant. A majority, if not all, of the rapid tests I have used explicitly caution against taking one in the absence of symptoms, as it is expected to yield negligible results.

I got stuck in the United States, was not allowed to fly back home until I got a negative result on a rapid test. It still took a week to test negative after I'd been symptom free.

14 days here

Re: Rapid Covid tests miss 90% of asymptomatic cases

#85

Post by harha »

gjulianm wrote: post #78
harha wrote: post #72

Earlier quoted context omitted.

And yet they made it in policies all around the world with lots of people involved poking around in the other peoples noses and throats.

Precisely the point of most of those policies was to use rapid tests to ensure you weren't being infections at that moment or close to it. I honestly don't know what's so controversial about them.

I can figure out for myself if I have symptoms or not

Re: Rapid Covid tests miss 90% of asymptomatic cases

#86

Post by SomeRndName11 »

usednet wrote: post #63
blagie wrote: post #34

Earlier quoted context omitted.

.... maybe .... It depends on the purpose of the test. For example, a trillion dollar question is still long covid. Very significant numbers of people are on disability right now. About 10% of Americans have some form of long covid, and >1% are unable to work due to long covid (or >2% of the workforce). Long covid comes up even with mild and asymptomatic cases, and seems to have a strong autoimmune component. If you'…

I think its highly likely long COVID simply does not exist, at least in the way we currently imagine it. The body of evidence that long COVID has a biological/chemical/physical basis is very unconvincing. The demographics of the people who get long COVID is the most telling evidence that its more of a syndrome than an actual disease. Over 20% (!) of bisexual people have/had long COVID. Long COVID sufferers are more l…

This not true, a plenty of well established scientific authorities in Cobid accept the existense of long Covid. Check Akiko Iwasaki for example https://twitter.com/VirusesImmunity. exsitense of long Coivid is not controversial.

Re: Rapid Covid tests miss 90% of asymptomatic cases

#87

Post by harha »

basisword wrote: post #77
harha wrote: post #72

Earlier quoted context omitted.

And yet they made it in policies all around the world with lots of people involved poking around in the other peoples noses and throats.

I’ve never seen a rapid test done by anyone other than the person taking the test. And most now only require a small nose swab rather than nose and throat. In fact any PCR tests I did were also self-administered (with guidance) so that the patient didn’t accidentally cough/sneeze on the nurse.

In many European and Asian countries this was the prerequisite to get approval from the app to not be locked up

Re: Rapid Covid tests miss 90% of asymptomatic cases

#88

Post by peyton »

SketchySeaBeast wrote: post #80
hospitalJail wrote: post #68

Earlier quoted context omitted.

Not to mention, I think people are going to look back at something with a 1% death rate and wonder why we panicked so hard. Various winter viruses kill on the same order of magnitude, and they kill the same old, obese, sick population. I'm a bit worried we will have something awful, killing healthy people or large swaths 5-20% of the population, and we will be too desensitized to care. It def seems like it was a poli…

> I think people are going to look back at something with a 1% death rate and wonder why we panicked so hard. What has a comparable death rate that nearly the entire population has been exposed to? > Various winter viruses kill on the same order of magnitude, and they kill the same old, obese, sick population. Name this virus please. If you're thinking the flu, it's estimated that each year worldwide about a billion…

Age-adjusted death rate in the US was about 4x worse than influenza and pneumonia. There’s a real argument the COVID response was disproportionate.

Re: Rapid Covid tests miss 90% of asymptomatic cases

#89

Post by gjulianm »

peyton wrote: post #83
gjulianm wrote: post #73

Earlier quoted context omitted.

> Not to mention, I think people are going to look back at something with a 1% death rate and wonder why we panicked so hard. I'm sorry, but what the hell are you talking about? In my city there were so many dead people they had to transform a skating rink into a morgue. ER rooms were completely overcrowded, COVID took so much effort to fight in hospitals that other diseases got later diagnoses and treatments, which…

My city had none of those problems. COVID standard of care w.r.t. intubation was uniquely terrible. Disrupting the daily routines of elders in nursing homes is well-known to drive mortality.

> My city had none of those problems

I think you missed the part where I said "Maybe the reason it wasn't for you is that you lived in a place where the government took precautions before it got too big".

> COVID standard of care w.r.t. intubation was uniquely terrible.

That's what happens when you're dealing with a disease that's literally three months old and that's saturating the entire health system. We also gave hydroxycloroquine, which was proven later to be useless. We literally knew almost nothing about the disease, what did you expect? Excellent standards of care from the start?

> Disrupting the daily routines of elders in nursing homes is well-known to drive mortality.

I think that an infectious respiratory disease and the lack of medical care are far more significant drivers of mortality.

Seriously, what is your point here?

Re: Rapid Covid tests miss 90% of asymptomatic cases

#90

Post by BaculumMeumEst »

usednet wrote: post #63
blagie wrote: post #34

Earlier quoted context omitted.

.... maybe .... It depends on the purpose of the test. For example, a trillion dollar question is still long covid. Very significant numbers of people are on disability right now. About 10% of Americans have some form of long covid, and >1% are unable to work due to long covid (or >2% of the workforce). Long covid comes up even with mild and asymptomatic cases, and seems to have a strong autoimmune component. If you'…

I think its highly likely long COVID simply does not exist, at least in the way we currently imagine it. The body of evidence that long COVID has a biological/chemical/physical basis is very unconvincing. The demographics of the people who get long COVID is the most telling evidence that its more of a syndrome than an actual disease. Over 20% (!) of bisexual people have/had long COVID. Long COVID sufferers are more l…

additionally:

“According to large population-based surveys, up to 33.7% of the population are affected by an anxiety disorder during their lifetime.”

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4610617/

published prior to covid

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