The figure shows how hiv progress from stage 1 or asymptomatic phase to stage 4 or AIDS stage with falling cd4 counts and rising viral load. The survival of hiv patient depends on at what stage they start treatment. survival or life span of hiv patients who start treatment at early phase is more than 30 yrs whereas survival in patients who start hiv treatment in late stages depends on many factors . Since in advanced stages there is a high risk of getting many oppertunistic infections you cannot be 100 percent sure if you would improve your cd4 counts with hiv treatments. so start hiv treatment as early as possible which is what all hiv treatment guidelines say.