When evaluating a patient, we rely on a good history to help us form a differential diagnosis. We use our physical exam skills to refine that list. A bedside ultrasound or ECG can further guide our decision-making and save precious time. Beyond these, we rely on seemingly failsafe data: radiographs, blood tests, and urine samples. But sometimes these reliable tests aren't so reliable.
As disease patterns evolve, so too must we. Being aware of emerging illnesses and remaining diligent in identifying their presence ensures a safe environment for the patient and the community. Measles is a highly contagious and potentially lethal viral infectious disease.