> how the heck this vaccine was actually developed mRNA vaccines for coronaviruses have been in progress since the 70s. This just happens to be when they final

> how the heck this vaccine was actually developed mRNA vaccines for coronaviruses have been in progress since the 70s. This just happens to be when they finally got to the point of being production-ready. It's a useful coincidence, but without it mRNA vaccines for coronaviruses would have been showing up in the near future anyway (at a slower rate without all the emergency COVID funding). > doesn't behave like a vaccine at all Sterilizing immunity isn't an inherent property of vaccines. > And has rare but serious side effects. All vaccines do that, and as with all widely-used vaccines the rate of side effects is much, much lower than the rate of side effects from the actual disease.