come out showing not only do they have good protection, that that protection can be higher than vaccinated immunity. two problems. one is that we still aren't doing enough testing so we still don't know out of all the people who have had it in the past who in fact has these antibodies and how many of these antibodies they have. how protected they are. some people have covid in the past and they develop significant antibodies. some who don't. we still don't know who they are. it is a problem. it's been a problem with regard to testing since the beginning of the pandemic. and now you're seeing another manifestation of that problem. the other issue is that you have the israeli study which i think doctors paul and cassidy were talking about there which it can show the additional protection but other studies have shown people who had covid in the past and then get at least one shot are far less likely to get reinfected versus those who had covid alone. so there is a nuance here. the best strategy i've heard from a lot of people is you