Fifteen vials of blood and who-knows-how-many dozen vials of marrow produced two unique values:
subnormal number of neutrophils (now 1.7, up from 1.2 but still less than 2.0) and
an elevation in T8 lymphocytes.
So, the investigation continues. For the next 6 weeks I will have a blood test twice weekly. (That would be 12 blood samples for the algebraically impaired.) On the final visit they will reassess the T lymphocytes, as well.
The T cells may just be a viral infection - and it may take months to clear that. The neutrophils may be just who I am. Nothing to worry about.