The dynamics of lymphocyte subsets (Fig. 2 C, D)
was as follows: the number of T lymphocytes decreased
by the end of the disease from 40.8 to 20.9%; the
number of B lymphocytes, from 25.2 to 10.1%; whereas
the number of ‘null’ (non-B, non-T) lymphocytes increased
from 34 to 69% by the terminal stage.