11-year-old Delhi boy hospitalized with hypersensitivity pneumonitis from prolonged pigeon exposure.

11-year-old Delhi boy hospitalized with severe respiratory distress due to prolonged exposure to pigeon feathers and droppings; doctors diagnose him with hypersensitivity pneumonitis, a lung inflammation and opacities caused by an allergic reaction to pigeon proteins. A case study highlights the hidden health risks of long-term exposure to pigeons.