The WHO Clinical Staging System for HIV/AIDS allows physicians in resource-limited settings to make clinical decisions based on patient clinical features instead of laboratory tests.
A clinical case shows how medical commercialism poses risks to patients without symptoms who get full body scans. Screening for pre-morbid disease detection is valuable if implemented correctly but calls for physician caution.
Article explains the role of surveillance by public health epidemiologists in tracking and controlling infectious diseases in the US and around the world.