FIRST VIDEO: Dr. Wu Zunyou, the Chief Epidemiologist of the Chinese Center for Disease Control and Prevention was interviewed by a reporter last month who asked why the data from the Wuhan market has not been released for public examination, and he replied: "They didn't isolate the virus, that is the issue."
SECOND VIDEO: Dr. Andrew Kaufman explains that, if the virus was never isolated, it cannot be said with certainty that it is not something else, which means it cannot be proven that it even exists. To isolate a virus, lung or other body fluid is collected and the virus is separated from everything else. Typically, it is filtered, centrifuged, and examined under a microscope to confirm it's unique characteristics. No one has ever succeeded in doing this with COVID-19. -GEG
This NBC News report includes Dr. Wu Zunyou, the Chief Epidemiologist of China's CDC, admitting: "The Wuhan virus has never been isolated and that is the problem." Source: NBC News