Do you mean LPS in the blood?
Higher levels of LPS have been found in ME/CFS patients: see
Dr Maureen Hanson's study.
Table 2 shows that median blood LPS in ME/CFS patients was 119.43 pg/ml, whereas healthy controls had 74.74 pg/ml.
According to the paper I quoted above:
So there may be other sources of LPS other than the kidneys, with multiple sources contributing to blood LPS levels. The paper reckons that leaky gut is the main source of bloodstream LPS.
I was just thinking: why not make an autovaccine from bacteria isolated from a stool (fecal) sample. That might work against the bacteria that are producing LPS which might enter the bloodstream via a leaky gut.
But then it occurred to me that if you made an autovaccine from a stool sample, that sample would perhaps also include desirable friendly gut bacteria, and you would not want to get the immune system to fight against your friendly bacteria.
So I wonder if the advantage of making an autovaccine from bacteria isolated from the kidney is that you will not include any friendly bacteria in the vaccine?
Note that it is not just bacterial endotoxin (LPS) that Dr Markov theorizes enters the blood from a kidney infection, but also bacterial exotoxins.
Prof Gottfries's Staphylococcus toxoid vaccine treatment of ME/CFS suggests that Staphylococcus exotoxins may also be involved in the etiology of ME/CFS in some patients.