n Acute
     - Six months or less
      - Body may purge itself in this time (15 – 25%)
     - Latency period
      - May take up to 30 years to progress in well persons
      - May take up to five years to progress in persons living
           with HIV/AIDS
n Chronic
    - Six months or greater (2.7 million)
    - 75 – 85% of those infected