There is nothing on offer here with 70% effectiveness. There is a vaccine regime with 90% effectiveness. That's more than sufficient to be effective at ending t

There is nothing on offer here with 70% effectiveness. There is a vaccine regime with 90% effectiveness. That's more than sufficient to be effective at ending the pandemic. Thee's another regime that we can all just forget about because it uses the same vaccine but with a different method of delivery that will be discarded in favor of the method proven far more effective. Averaging the two makes no sense.