CD4 and tuberculosis: Then the patient was brought to this MDR-TB treatment centre, and it was discovered that the patient’s CD4 count was only 40 cells per cubic milliliter, which indicated failure of the patient’s antiretroviral treatment, and the patient died despite the efforts we made... the antiretroviral therapy failure was not diagnosed until the patient was found fell down on the road, and that may have been the possible cause of the patient’s death,....