Examining blood sample of subject

I have looked at the blood sample of a person with MS-like symptoms including occasional loss of feelings in limbs among other things. He has had MRI, other scans, and multiple tests. Nothing conclusive.
The sample was old, but sealed. I have the person do this so as the cells die, they cannot dry out. This often prompts the endobionts and stealth bacteria to emerge.
I check this out using a variety of microscopic techniques.
In this case, I have found a number of "balloon" type structures distributed amongst the cells. There were a few lymphocytes present, and one had attached to a "balloon".
This indicates to me, an antigen\receptor interaction going on, telling me the entity is dangerous, or least unwanted.
I usually assume at this point, there may be a cell-disease agent in subjects system.
Cultures are prepared with controls, to see if any further information can be determined.
I this case, there was a bacteria which grew, but had to be destroyed. I believe it must have been a contamination.
The conclusion after multiple tests; the primary bacteria is mycoplasma. This particular strain was aggressive, and pleomorphic. There were very distinct morphological characteristics which give me confidence about the conclusion.
Antibiotic infused liquid culture revealed there was complete inhibited grow of bacteria.
Tetracycline was used for this experiment.