Extrapolated what? I am taking what the CDC is saying here as truth, at which point it seems almost impossible that 99.5% of people would know correctly if they

Extrapolated what? I am taking what the CDC is saying here as truth, at which point it seems almost impossible that 99.5% of people would know correctly if they have toxoplasma... it would seem like your accuracy on guessing that should be extremely low. (FWIW, I am guessing that you somehow failed to read the context of the conversation and are saying the CDC tested a sample of the population and extrapolated the number of people who have it... "duh".)