Thanks Hebbeh! I'm aware of the problems with the Stanford study (it has been withdrawn, no?), but I thought that USC study was better. Or was it poo-pooed only coz it showed about the same result? But it does not matter really, coz there are other studies, NY, Dutch (-?), others (?), and they all converge to well under 1%. The indisputable Diamond Princess case came out to 0.5% adjusted. Who can argue w/ the Diamond Princess case?
#31
Posted 24 April 2020 - 02:12 AM
#32
Posted 24 April 2020 - 05:57 PM
Fresh from the press , A new serological analysis on 591 individuals by the Institut Pasteur, using new techniques not yet commercialised : https://www.pasteur..../34269/download
- Antibodies neutralisation activity begins 7 to 15 days after first symptoms.
- In an interview elsewhere, the authors were not very optimistic for a vaccine anytime soon, if ever..
Edited by BlueCloud, 24 April 2020 - 06:13 PM.
#33
Posted 26 April 2020 - 02:05 PM
the latest antibody test study results: https://www.dropbox....script.pdf?dl=0
Lay version: nytimes: Coronavirus Antibody Tests: Can You Trust the Results?
quote:
Four assays (Bioperfectus, Premier, Wondfo, in-house ELISA) achieved >80% positivity in the latest two time intervals (16-20 and >20 days) while maintaining >95% specificity.
#34
Posted 26 April 2020 - 10:51 PM
Curious if anyone in your office lost their sense of smell or taste without nasal symptoms like stuffy runny nose or sneezing? Did any of them suffer from serious shortness of breath, like you would get up to go to the bathroom and feel like you were climbing Mt. Everest? Or bad headaches or body aches? Those are the symptoms various family members of mine had that made this seem different from a normal upper respiratory infection. Are there other common infections like the flu that can cause such a complete loss of smell or taste in the absence of sinus symptoms for instance?
#35 Guest_covid 19 best test kits_*
Posted 09 May 2020 - 07:28 AM
Q# 05, HOW RELIABLE ARE THE COVID-19 RAPID TESTS?
The PCR test is extremely accurate when carried out carefully by experienced technicians in a well-equipped lab. Because it specifically detects genes found only in the Sars-CoV-2 virus, it will produce very few false positives, said Andrew Preston, reader in microbial pathogenesis at the University of Bath. False negatives — which indicate wrongly that someone is clear of infection — are more of a problem. They often result from problems with collecting and processing patient samples. For other viruses, false negative rates of 10 per cent are widely accepted and they can reach as high as 30 per cent. Therefore PCR tests “have more often been used to confirm an infection rather than give someone the all clear”, said Dr Gill at Warwick Medical School.
The accuracy and reliability of the new antibody tests will not be known until they have been validated and technicians have gained more operating experience. Spain’s ministry of health last week withdrew 8,000 Chinese-made testing kits delivered to Madrid’s regional government because of worries about inaccurate results. But the manufacturer Shenzhen Bioeasy said the problems may have been because of incorrect sample collection or use of the product.
“It is not easy to quickly and massively ramp up testing capacity when it requires both high-quality kits and properly trained staff.”
[...]
Edited by caliban, 21 May 2020 - 12:43 PM.
spam
#36
Posted 09 May 2020 - 03:22 PM
From Chris Kresser's email list:
Should you get a COVID-19 antibody test?
The accuracy of an antibody test depends on several factors:
- Is the testing methodology reliable?
- Are the results reproducible?
- Are the chances of a false positive/negative low enough?
Most currently available coronavirus antibody tests fail on all of these fronts.
https://email.chrisk...9-antibody-test
#37
Posted 21 May 2020 - 10:23 AM
I’ve attached my wife’s covid antibody test she took today along with 3 other peoples covid tests she works with. She’s a key worker so the U.K. government have recently been sending tests out to them. We were both off last month on what we suspected to be covid 19 because of the completel loss of smell and taste, low energy, annoying coughs, and for her, going really pale at times.
Her test (initials MP on it), is the only one that came back positive.
Attached Files
Edited by Jesus is King, 21 May 2020 - 10:26 AM.
#38
Posted 21 May 2020 - 12:35 PM
I’ve attached my wife’s covid antibody test she took today along with 3 other peoples covid tests she works with. She’s a key worker so the U.K. government have recently been sending tests out to them. We were both off last month on what we suspected to be covid 19 because of the completel loss of smell and taste, low energy, annoying coughs, and for her, going really pale at times.
Her test (initials MP on it), is the only one that came back positive.
Thanks for sharing this is very interesting. Are you pretty sure you both caught the same bug? Is this the new "Roche" antibody test, do you know anything about that?
#39
Posted 21 May 2020 - 02:28 PM
Currently, our experts didn't find any particular vaccine for COVID-19. During this pandemic Coronavirus Detection Kit is helping in it. Reducing the workload of doctors also. This testing kit is not for home testing.
#40
Posted 28 May 2020 - 06:38 AM
I’ve attached my wife’s covid antibody test she took today along with 3 other peoples covid tests she works with. She’s a key worker so the U.K. government have recently been sending tests out to them. We were both off last month on what we suspected to be covid 19 because of the completel loss of smell and taste, low energy, annoying coughs, and for her, going really pale at times.
Her test (initials MP on it), is the only one that came back positive.
Thanks for sharing this.
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