Forty-nine Americans were diagnosed with Powassan virus disease in 2023, the highest annual total since national reporting ...

Age 40: Stressed Coffee Drinker Has Acute-Onset Palpitations A 40-year-old man has palpitations and dyspnea. He denies chest pain, nausea, vomiting, diaphoresis, light-headedness, or recent illness.

Missing Toenails and Purple Mottling in a Term Infant A term female infant born without toenails presents with pulmonic stenosis, hair loss, and red-purple skin. Her mother's pregnancy was ...