Posted on 05/28/2020 5:11:08 AM PDT by ConservativeMind
Antibody Test
There are significant differences in the accuracy of antibody tests based on their "sensitivity," or their ability to identify those with antibodies to SARS-CoV-2 (true positive rate), and their "specificity," or their ability to identify those without antibodies to SARS-CoV-2 (true negative rate).
Agencies within the U.S. government, such as the NIH, have been evaluating the FDA-allowed antibody tests. An evaluation of the 11 currently allowed tests (see table below) showed that sensitivity ranges from 83.3% to 100% and specificity ranges from 94.4% to 100%. None of the diagnostic products provide 100% on both measures. The best performing products currently appear to be the high throughput ELISA-based systems (run on a laboratory device) Abbott Architect and Roche Elecsys, each providing 100% sensitivity and, respectively, 99.8% and 99.6% specificity. These two tests are offered in many hospitals and commercial laboratories, including the two largest commercial labs in the U.S., Quest Diagnostics (uses Abbott Architect and another test) and LabCorp (uses Roche Elecsys). A doctor can order these specific tests.
| PRODUCT | SENSITIVITY | SPECIFICITY |
| ELISA-based Equipment: | ||
| Abbott Architect SARS-CoV-2 IgG |
100% | 99.6% |
| Bio-Rad Platelia SARS-CoV-2 Total Ab (IgG) |
92.2% | 96.6% |
| DiaSorin LIASON SARS-CoV-2 S1/S2 IgG |
97.6% | 99.3% |
| EUROIMMUN SARS-COV-2 ELISA (IgG) |
90% | 100% |
| Mount Sinai Hospital Clinical Laboratory COVID-19 ELISA Antibody Test (IgG/IgM) |
92.5% | 100% |
| Ortho-Clinical Diagnostics VITROS (IgG) |
83.3% | 100% |
| Roche Elecsys Anti-SARS-CoV02 (IgG) |
100% | 99% |
| Wadsworth New York SARS-CoV Antibody Detection (IgG) |
88% | 98.8% |
| Rapid Test Strip**: | ||
| Autobio Anti-SARS-CoV-2 Rapid Test (IgG/IgM) |
88.1% * | 99% * |
| Cellex qSARS-CoV-2 IgG/IgM Rapid Test |
93.8% * | 96% * |
| Chembio Diagnostic Systems DDP Covid-19 IgM/IgG† |
93.5% * | 94.4% * |
I can’t think of a single reason to be tested.
I guess we can conclude that the CDC statement yesterday, claiming there is too many false results from the antibody tests was a giant half-truth of a lie.
Apparently the CDC just does not want the antibody tests to show an opposing view of how many folks have had the virus.
So it threw up a smokescreen instead of admitting that some of the tests are plenty good.
Testing = case harvesting
Two reasons I can think of: helping in the decision when to knock off the WuFlu avoidance crap, and whether or not to get the vaccine.
By the way, you can order the Abbott test from Quest yourself. They charge $12 to have a doctor order it for you.
Ping
Well, I’ve never had a flu vaccination and I don’t intend to get one for this, so that one’s out.
And I’ve never subscribed to the WuFlu avoidance crap. So that one is not relevant either.
I do take zinc suplements, drink lots of coffee as usual, and watch my diet. I don’t wash my hands much and am an avid nail biter. I also rarely get sick and that may be why. I figure if this thing even enters my body I’ll either be asymptomatic or I might get a little cough before my body roots it out and waterboards it before giving it the heave ho.
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