John Campbell is salt of the earth, a kind soul who posts important information as a medical expert on YouTube. He mentions Coronavirus and how the mice have some human receptors-- forgive me I am not a doctor or medical expert, but whatever they tested killed 100% of the mice. I think it's a good thing to be aware of it.
Of course we hear about the next pandemic constantly. To me it feels like they are scrambling to find something because their original plan did not work.
Steve M