Regarding CDC and Mayo Clinic estimates for when antibodies are first produced, I really have to wonder if there research is colored by what the big Pharma Covid test manufacturers could accomplish at that time when this was written, or even perhaps because at the time maybe the lack of FDA approvals meant they did not have to concern themselves with second generation serology antibody tests?
Back in May 2020 when Abbott and Roche had came out with their tests this review said their sensitivity was limited to 14 days after becoming contagious.
Quote:
Roche (using Elecsys anti-Sars-CoV-2 antibody test) claims sensitivity of 100% and specificity of more than 99.8% when an individual is tested two weeks after a PCR test has diagnosed an active Covid-19 infection. This beats – though only by the slimmest margin – the figures Abbott released for its test, which was launched in the US in mid-April, without an EUA. It finally got the FDA’s buy-in last week, though it only obtained EUA last Tuesday. https://www.evaluate.com/vantage/articles/new...dy-testing
Given that there is turn-around time concerns with PCR test results, IMO those tests had limited usefullness, yet were hailed by the Administration and much of the press at the time. I have not followed up on claims about these tests in the present. They don't concern me.
I am saying tests that can detect antibodies sooner, like in 3 days, exist.
Therefore, the antibodies must exist, unlike what the CDC and Mayo say.
That invalidates your conclusion, Quote:
As early as March 5, 2020, the World Nano Foundation (WNF) got the CE Mark which is used in Europe as validation much like our FDA test approval.
On the https://www.triedandtested.tech/ website the WNF and QMC (QDX HealthID) are listed as partners with their logos displayed.
So, Ted, "my 3-day window" is based on what the WNF says their test does, (source: https://www.worldnanofoundation.com/covid19-tests )
There is much more information on their 2nd Generation Gold Nano Test on their website if you poke around.
I have seen that organizations with events or airlines with boarding clients are wanting same day tests, or a maximum of 48 hours before event/flight.
That is within the 3 day/72 hour window of the gold rapid-test by WNF.
Back in May 2020 when Abbott and Roche had came out with their tests this review said their sensitivity was limited to 14 days after becoming contagious.
Quote:
Roche (using Elecsys anti-Sars-CoV-2 antibody test) claims sensitivity of 100% and specificity of more than 99.8% when an individual is tested two weeks after a PCR test has diagnosed an active Covid-19 infection. This beats – though only by the slimmest margin – the figures Abbott released for its test, which was launched in the US in mid-April, without an EUA. It finally got the FDA’s buy-in last week, though it only obtained EUA last Tuesday. https://www.evaluate.com/vantage/articles/new...dy-testing
Given that there is turn-around time concerns with PCR test results, IMO those tests had limited usefullness, yet were hailed by the Administration and much of the press at the time. I have not followed up on claims about these tests in the present. They don't concern me.
I am saying tests that can detect antibodies sooner, like in 3 days, exist.
Therefore, the antibodies must exist, unlike what the CDC and Mayo say.
That invalidates your conclusion, Quote:
Quote:If a person is non-contagious for 3 days, then contagious starting on day 4 until day 14 and the antibody test is likely to not change from a negative result to a positive result for up to day 14, then most of the contagious people being tested will get a negative test result (green status) and will be allowed to enter the stadium.
A portion of those that have already been contagious for a week and get tested on day 10 or later, may get screened out, but there would still be a bigger portion of the contagious people being allowed into the stadium, increasing the risk to others.
As early as March 5, 2020, the World Nano Foundation (WNF) got the CE Mark which is used in Europe as validation much like our FDA test approval.
On the https://www.triedandtested.tech/ website the WNF and QMC (QDX HealthID) are listed as partners with their logos displayed.
So, Ted, "my 3-day window" is based on what the WNF says their test does, (source: https://www.worldnanofoundation.com/covid19-tests )
Quote:OVERVIEW
• There is a million in stock, with capacity to supply many millions more per week.
• Test is point-of-care (pregnancy like) test with positive reading in 3 minutes and negative reading can be confirmed after 15 minutes.
• The test can be used on day three after suspected contraction of the virus.
• Severe Acute Respiratory Syndrome Coronavirus Igm/IgG Antibody Kit by Colloidal Gold Method. 20 tests per Box. CE-MARK attained March 5th 2020.
• Tested against Covid-19 positive and negative patients in China already with 97% overall accuracy.
There is much more information on their 2nd Generation Gold Nano Test on their website if you poke around.
I have seen that organizations with events or airlines with boarding clients are wanting same day tests, or a maximum of 48 hours before event/flight.
That is within the 3 day/72 hour window of the gold rapid-test by WNF.
