@engineer,
Quote:I don't know of any false positives.
Well that settles it, then, doesn't it?
Now, how did they determine which positive return was truly a case? Did they include clinical observation in their diagnosis, or did they just count every positive test result as a case?
Is that how it worked?
Tony: “…If you get [perform the PCR test at] a cycle threshold of 35 or more…the chances of it being replication-confident [aka accurate] are miniscule…you almost never can culture virus [detect a true positive result] from a 37 threshold cycle…even 36…”
You believe him, right?
Of course you do. Therefore, we need you to take that next step and allow yourself to accept that what he's saying is that the PCR-test was set at a cycle threshold that made the test meaningless. I'm afraid neither you nor you PhD friends are going to convince anyone that a test that tony declared meaningless is somehow meaningful because you haven't heard of any false positives. Just how meaningful do you think the the test is? I'm serious! 10%, 20% . . .
Who said this:
“Positive results are indicative of active infection with 2019-nCoV but do not rule out bacterial infection or co-infection with other viruses. The agent detected may not be the definite cause of disease. Laboratories within the United States and its territories are required to report all positive results to the appropriate public health authorities.
"Negative results do not preclude 2019-nCoV infection and should not be used as the sole basis for treatment or other patient management decisions. Negative results must be combined with clinical observations, patient history, and epidemiological information."
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I can't think of a better way of saying that the test is just about useless?
Oh, and how does the PCR-test determine the amount of virus, the state of the virus, and the identity of the virus?
Ninety people who received positive COVID-19 results did not have the virus, according to the state Department of Public Health (you should call them and straighten them out).
Experts: US COVID-19 positivity rate high due to 'too sensitive' tests
Up to 90 percent of people tested for COVID-19 in Massachusetts, New York and Nevada in July carried barely any traces of the virus and it could be because today's tests are 'too sensitive', experts say.
Health experts say PCR testing - the most widely used diagnostic test for COVID-19 in the US - are too sensitive and need to be adjusted to rule out people who have insignificant amounts of the virus in their systems because they're likely not contagious.
Today the PCR test, which provides a yes or no answer if a patient is infected, doesn't say how much of the virus a patient has in their body.
PCR tests analyze genetic matter from the virus in cycles and today's tests typically take 37 or 40 cycles, but experts say this is too high because it detects very small amounts of the virus that don't pose a risk.
Doctors say fewer cycle thresholds, meaning the number of cycles needed to detect the virus, hone in on those with greater amounts of the virus who do pose risks, according to the New York Times.
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What could it mean?