[cblconfederate]

The modeRNA vaccine is an mRNA vaccine, a completely new type of vaccine. While theoreticall less likely to have adverse effects, it did have adverse effects, and its efficacy remains a question. These are completely new types of vaccine, that presumably would need even more testing than the relatively well understood attenuated viruses.

[dehrmann]

> modeRNA

I can't believe I didn't notice that until now.

[linuxftw]

> completely new type of vaccine

Then is it a vaccine at all? Vaccines were traditionally live, dead, or attenuated virus/bacteria injections, some with adjutants, to stimulate an immune response.

Technologically speaking, it's bicycle vs airplane. Similar underlying purpose, entirely different implementation.

[LeoNatan25]

Both a bicycle and an airplane are transportation vehicles. Likewise, anything that illicits imunity is a vaccine, regardless of how novel the approach is.