Her father died from/of 'double pneumonia'. [=pneumonia in both lungs]
He caught/contracted 'pneumonia' over the winter.
(..) How can you do this thing to me? There's bound to be talk tomorrow Think of my lifelong sorrow At least there will be plenty implied If you caught pneumonia and died I really can't stay Get rid of that hold out Ah, but it's cold Outside (..)2003 Elf