What CD4 count is indicative of an official AIDS diagnosis?

The threshold for an official diagnosis of AIDS is defined by a CD4 count of 200 cells/mm3 or lower. When an individual's CD4 cell count falls below this level, it indicates a significant impairment of the immune system, making them more susceptible to opportunistic infections and certain cancers that are characteristic of AIDS.

Understanding the CD4 count is crucial in monitoring the progression of HIV infection. A higher CD4 count typically indicates a stronger immune response, while a count at or below 200 cells/mm3 signifies that the individual has progressed to the AIDS stage of the disease. This critical marker helps healthcare providers decide on treatment protocols and preventive measures for associated opportunistic conditions, making accurate identification essential for timely intervention and management of patient care.