Also, PTLDS is a way of saying that people have the same symptoms, but you shouldn't give them antibiotics anymore, because they don't have bacteria, they have an autoimmune disorder, or crystallized dead bacteria that irritate the tissues, or some other novel, theoretical disorder (which is in every case less likely than the simple alternative that they still have bacteria).

Given that each one of the 6 or so experiments I've read about performed in vitro or in vivo show that antibiotics rarely kill all the bacteria, I don't understand why it's so hard to believe that some bacteria survive antibiotic treatment.