Worth noting Being Vaccinated only reduces this risk of passing it on,well so we are led to believe anyway.it doesn”t totally stop it and is open to Debate of by how much.yes any percentage be it marginal might be good,but wouldn”t achieve utopia as some might suggest…if percentage risk cut was high,case rate would be low by now and there would only be pocketed cases but that is not the case…based on the framework of herd immunity ie it wouldn’t have anywhere to go..