While I can't quote exact numbers and 31% seems low to me, there is no question but that there are a lot of false negative tests for C diff. So, if there are better tests in the pipeline, they would be very welcome.
Now, if they can just develop better treatments! The strains of C diff in this country have developed resistance to the drugs that used to be very effective (flagyl and vanco), making C diff very difficult to eradicate nowadays. And those damn spores are not killed even by some hospital room cleaning methods, get all over anything in the room, and survive for a long time. So, stay out of the hospital as much as possible, and don't take antibiotics without a good reason.
