This video investigates the original SARS coronavirus and how this was researched and how this relates to the current SARS COV-2
These are the slides in the presentation by Dr Andrew Kaufman (MD)- andrewkaufmanmd.com
Isolate means to separate from another substance so as to obtain pure or in a free state
Covid-19 has never been isolated. How can something that has never been isolated be tested for with any degree of certainty in a patient?