Test-negative case control studies are abundant in the era of COVID, and are the primary type of observational study used to calculate vaccine efficacy.
No virus has ever been isolated allegedly, have you looked into that? Here is a good start if you havent.
https://andrewkaufmanmd.com/sovi/
I’m familiar with the argument and it’s on my list to get to it once I finish my book.
No virus has ever been isolated allegedly, have you looked into that? Here is a good start if you havent.
https://andrewkaufmanmd.com/sovi/
I’m familiar with the argument and it’s on my list to get to it once I finish my book.