Sandy
Immunology has always been a part of the treatment equation whether implicit or not.
For that matter you could call the use of MABs (Herceptin, Erbitux etc) immunological.
If you look at this in more detail a lot of it is supplements and vitamins... see also the definition of Orthomolecular.
It is not clear to me what the treatment actually is, so many things are listed....
For example, how do the make vaccines (against what) ... and in what timeframe? etc.

M