Killing the adults is a piece of cake, stopping the lifecycle especially if outside the norm like F.buskii in thymus or kidney is the difficult part...
Did you test for tissue specific areas? Did they test for Lupus, HIV etc.?
Cyptosporidium is always present in cancer patients, Giardia cycles on and off being highest around full moons with lyme patients...
What would you say if I speculated that B.Hominis may be a side effect of the hormone production of F.Buskii in the gut?