Why do you need a vaccine that has a 99.7% survival rate?
Because those at high risk might improve their chances of survival.
RE: Why do you need a vaccine that has a 99.7% survival rate?
Because you don’t want to get badly sick even if you have a 99.7% chance of surviving.
“Why do you need a vaccine that has a 99.7% survival rate?”
The covid-19 vaccine has a 99.7% survival rate? LOL