How do you explain in the period between delta and Omicron test positivity rates went below 1%?
Very difficult to explain what happens in that situation.
One of the best references I found way back in July last year summarised RT-PCR testing as follows:
It has been demonstrated that RT-PCR testing is not reliable for three important use cases:
•RT-PCR alone can not reliably identify infected patients in a low prevalence social situation.
•RT-PCR alone can not reliably clear patients as being non-infected, if they have symptoms and come from a high prevalence social situation.
•RT-PCR alone can not reliably filter patients for subsequent medical studies such as antibody tests, symptom correlations studies, or new test candidates.
Yet governments and health officials used RT- PCR test results to enforce go, no-go policies and rules?
The whole point of the exercise is when RT -PCR tests are used as part of a diagnosis it
might assist a health practitioner in treating patients appropriately but that is as far as it goes..
The positivity rate as measured assumes lots of things, one of which is that the RT-PCR test result is 100% accurate with no false positives or false negatives. There are papers that have been written trying to factor in the accuracy of an RT -PCR test into the calculation of positivity rates.
Here is the article that was written way back in April 2021 for those that have a stomach for some very heavy stats theory.
Here is the key recommendation made in the attached paper.
Did any government do anything to correct their incorrect use of RT PCR results? Of course not --- it would not have fed the hype to justify their BS rules and regulations.
In future clinical studies, general at-scale RT-PCR - RCP testing alone, and tests with similar characteristics, should not be used as the ground truth SARS-CoV-2 cases. It is imperative that a more reliable diagnos-tic method is used, before other correlations and effects are calculated. Restricting studies to patients with hospital admissions and thorough expert diagnosis, using dedicated labs with testing experts, is likely to yield more reliable results than the non-expert, mass-testing protocols that are being used in some geographical regions