Parameter

Value/unit

(Natural death rate of CD4⁺T)

(Blanket death rate of infected CD4⁺T)

(Death rate of free virus)

(Lytic death rate for infected cells)

(Rate CD4⁺T become infected with virus)

(Rate infected cells become active)

r (Rowth rate of CD4⁺T population)

N (Number of virions produced by infected CD4⁺T)

Varies

(Maximal population level of CD4⁺T)

s (Source term for uninfected CD4⁺T)

(CD4⁺T population for HIV-negative persons)