Anything outside the approved narrative is fringe science, so this should stir things up a bit. A researcher named Dr. Derek Knauss, as reported by Principia-Scientific, claims no one has isolated COVID19, the virus.
Articles tagged as
Influenza
Why a World Famous Doctor Opposed Closing Schools to Slow the Spread of the Flu
Dr. D.A. Henderson is not unknown to the global medical community. He led an international effort to eradicate smallpox. Henderson also had some thoughts about pandemics and school closings, house arrest (my words not his), and limiting public interaction. He opposed all of it.