Exactly, it has never been isolated. And never satisfied the Koch's postulates. Coronavirus was chosen because it's easy to fool anyone with it and it itself is of questionable nature, there is a valid opinion that what they call "coronavirus" may be how our immune system responds to infections and "common cold" is just that and not caused by a specific infection.
"Since no quantified virus isolates of 2019-nCoV were available for CDC use at the time the test was developed and this study conducted, assays designed for detection of 2019-nCoV RNA were tested with characterized stocks of in vitro transcribed full length RNA"
Exactly, it has never been isolated. And never satisfied the Koch's postulates. Coronavirus was chosen because it's easy to fool anyone with it and it itself is of questionable nature, there is a valid opinion that what they call "coronavirus" may be how our immune system responds to infections and "common cold" is just that and not caused by a specific infection.
https://www.fda.gov/media/134922/download
"Since no quantified virus isolates of 2019-nCoV were available for CDC use at the time the test was developed and this study conducted, assays designed for detection of 2019-nCoV RNA were tested with characterized stocks of in vitro transcribed full length RNA"
Yep, never been isolated. Straight from the CDC.
Now explain it to every moron who downvoted my original comment. Fucking Branch Covidians everywhere...