Pulmonary Infection

Friendly Fire After the Infusion

A patient on pembrolizumab for head and neck cancer develops subacute dyspnea, dry cough, and bilateral ground-glass opacities — a checkpoint inhibitor pneumonitis that mimics infection and demands immunosuppression, not broader antibiotics.

Jul 20, 2026

1888-2006

The Vet Who Lent His Name to the Soil

Edmond Nocard was a veterinarian at a school outside Paris when he pulled a strange branching filament from the lymph nodes of a dying cow. He could not have known that the same organism lived in the soil beneath the pasture, that it would be renamed in his honor within a year, or that it would spend the next century confusing microbiologists and killing immunocompromised patients in ways they were slow to recognize.