Table 1.

Parameters of the T cell Response Model

Parameter	Value	Description	Dimension
a	0.4	Proliferation rate of activated Tconvs	molecule−1time−1
b	0.1	Natural death rate of activated Tconvs and Tregs	time−1
c	${10}^{-5}$	Fratricide death rate of activated Tconvs	cell−1time−1
d	0.01	IL-2 secretion rate by activated Tconvs	molecule cell−1time−1
e	0.01	IL-2 consumption rate by activated Tconvs and Tregs	cell−1time−1
f	1	IL-2 decay rate	time−1
g	0.1	Natural death rate of naïve Tconvs and resting Tregs	time−1
β	0.05	Ag stimulation of naïve Tconvs and resting Tregs	time−1
γ	0.1	Treg-mediated suppression rate	cell−1time−1
ε	0.6	Ratio of proliferation rates of Tregs to Tconvs	–
λ	0.006	Ratio of renewal rates of resting Tregs to naïve Tconvs	–
$N_0$	4	Renewal rate of naïve Tconvs	cell time−1
${\hat{N}}_0$	$\lambda N_0$	Renewal rate of resting Tregs	cell time−1