Wednesday, September 30, 2020

Covid Or False Positives?? and Then What??

Tin-Pot Tony Evers and his eager "health" minions point to a surge in Chinese Lung-Rot "cases" (which are only positive tests) and you can bet they're thinking hard about closing up this State to ensure a total economic collapse.

It's what Democrats do.

Meantime, Teh Scienzzzz says otherwise.

Health experts now say that PCR testing for SARS-CoV-2, the virus associated with the illness COVID-19, is too sensitive and needs to be adjusted to rule out people who have insignificant amounts of the virus in their system.1 The test’s threshold is so high that it detects people with the live virus as well as those with a few genetic fragments left over from a past infection that no longer poses a risk. It’s like finding a hair in a room after a person left it, says Michael Mina, MD, an epidemiologist at the Harvard T.H. Chan School of Public Health.2...

This is the report on which the NYT based its story of last week.

Apparently the swab-sample is run through 40 cycles of amplification, where 30-35 cycles is a far better benchmark:

...Any test with a cycle threshold (CT) above 35 is too sensitive, says Juliet Morrison, PhD, a virologist at the University of California, Riverside. “I’m shocked that people would think that 40 [cycles] could represent a positive.” A more reasonable cutoff would be 30 to 35, she added. Dr. Mina said he would set the figure at 30, or even less. Those changes would mean the amount of genetic material in a patient’s sample would have to be 100-fold to 1,000-fold that of the current standard for the test to return a positive result worth acting on...
There's even more fun here!!


...A positive PCR test does not tell doctors whether the person is currently ill or will become ill in the future, whether they are infectious or will become infectious, whether they are recovered or recovering from COVID, or whether the PCR test identified a viral fragment from another coronavirus infection in the past. The CDC reports that a person who has recovered from COVID-19 may have low levels of virus in their bodies for up to three months after diagnosis and may test positive, even though they are not spreading COVID-19...

"Another coronavirus infection" can include SARS, MERS, or a common cold.  Ain't that wunnerful??

So.

The current practice with the test is far too sensitive.  And even if it's adjusted, your doctor doesn't know what your real health situation is.

So obviously, we need more masks, more distance, and FAR less human interaction in churches.

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