ARR enables one to compare the absolute risk reduction with the the risks associated with taking the vaccine.
If a person takes the vaccine, the ARR provides an indication of how much the vaccine reduces the risk of getting the disease. E.g., Pfizer and Moderna vax have an ARR of 0.4%-0.7%. So there was a net 0.4%-0.7% less chance of individuals in the test group getting the disease as compared to the individuals in the control group.
One can use this information to compare the risk of harm associated with taking the vax (side-effects, bad reactions, potential for long-term unknown harm, or the like) with how much the vax reduces your chance to get the disease.
Subsequent long-term studies may provide different results, but the ARR and RRR for Pfizer and Moderna vaxs is based on their Phase 3 trials.
For me, an ARR 0.4%-0.7% isn’t worth it to take an untested/novel vaccine. If the number changes with more evidence/research I will reevaluate.
It usually takes 10+ years to deploy a new vaccine because the long-term effects are unknown. And even with conventional testing/evaluation, several vaccines have been pulled from the market after making it through multi-year evaluations because harmful long-term effects are discovered.
“ It usually takes 10+ years to deploy a new vaccine because the long-term effects are unknown”
————————————————-
It use to take weeks for the Pony Express to deliver a letter.
A month to build a car (or horseless carriage).
Months to make a suit of Armour.
Geeeez, get with the times. We have advanced, like this internet thing you’re using.
BTW, 10 years is a old ancient number, now it’s more like 2.
Testing has advanced, DNA replication(which didn’t happen until the 90s) has extremely advanced.
If you are in fear of a vaccine, may I suggest you don’t take the vaccine.
Stop living in fear of a vaccine you’re not going to take,
Again, I just doj’t see how this can be used to determine vaccine efficacy.