Public health issues are very important in our society, particularly the AIDS virus (HIV) infected with HIV. If leave HIV had become be leading cause of deaths because of increased life anticipation. Derived statistical tools from theoretical modelling of solid epidemiological although some adjustments were made because of the unique nature of HIV infection. In this paper shock model to assess the threshold level is been derived by three parameter ExponentiatedWeibull distribution. Information collected in secondary data fitted for this model will be used to support the development of the model.