
A Stochastic System and Its Corresponding Deterministic System 339
TABLE 8.4: Des cription of model parameters in (8.37) as well as the
values of parameter s used in the simulations.
Description Value
d
T 1
Natural death rate of T
1
0.02 per day
β
T 1
Infection rate of active CD4+ T cells 10
−2
µl blood/(copies · day)
γ
T
Differentiation rate of activated CD4+ T cells
0.005 per day
to resting CD4+ T cells
n
T
Number of daughter cells produced by one
2
proliferating resting CD4+ T cell
a
T
Maximum activation rate of HIV-specific
0.008 per day
resting CD4+ T cells
κ
V
Half saturation constant (for activation rate) 0.1 copies/µl blood
a
A
Activation rate of resting CD4+ T cells