His baby developed omphalitis, and they had to take him to the hospital.

My grandfather has been hospitalized for bronchitis.

He was hospitalized for cholecystitis.

He was diagnosed with prostatitis.

He is suffering from the heat.

This curtain is made of fire-retardant material.

He likes to take a walk in the park at dusk.

My grandfather is suffering from arthritis.

My younger brother had an appendectomy yesterday.

My younger sister is missing school because of tonsillitis.