PSA: The US FDA still regards the Moderna thing as a Gene Therapy product, NOT a vaccine!
To quote Moderna’s filing with the US Securities and Exchange Commission in June 2020,
Currently, mRNA is considered a gene therapy product by the FDA.
Strang won’t tell you that. A real vaccine uses DNA (like polio vax) where you have no chance of getting the disease afterwards, whereas the COVID vax uses mRNA to temporarily boost immune response.