The AIDS Research Model

Abstract
The evolution of the acquired immunodeficiency syndrome (AIDS) as a global pandemic has heightened awareness of the persistent threat posed by established, emerging, and re-emerging infectious diseases of global health importance.1 Examples of such diseases include resurgent endemic diseases such as malaria and tuberculosis, newly recognized conditions such as liver disease due to hepatitis C virus, and diseases such as West Nile fever and dengue, which have appeared in previously uninvolved geographical settings. In addition, endemic conditions such as acute respiratory infections, diarrheal diseases, and measles remain leading causes of illness and death worldwide.2