Koch's Postulates are used to prove that a given illness is caused by a microbe. We've never proven that Covid-19 satisfies these postulates.



So it seems we don't know that Covid-19 is an infectious disease. We've never isolated it.





We should be able to extract blood (or other infectious material) from many people with the same syndrome, and grow millions of copies of the same microbe.



Apparently, as far as the doctor in the video above can tell, this was never done for Covid-19. At all. Ever.

Another of Koch's postulates states that we should be able to find some diagnostic set of symptoms. Covid-19 simply does not have any such set. Dry cough and fever? Found in other diseases.



Watch the video above and try to understand it. It's not that hard; he's a good teacher.