Given a positive result. P of having the disease are 2%. Given a false result, it’s about 0. Given 2 positive results, assuming independent results (I think tha

Given a positive result. P of having the disease are 2%. Given a false result, it’s about 0. Given 2 positive results, assuming independent results (I think that’s unlikely but let’s assume) then the probability of having it is 0.04. I’m not disagreeing that there usefulness to tests, but there is danger too.