He got infected with brucellosis because he was handling cows that were infected with the disease.

He used malingering to skip school.

My sick father is seen by a doctor every day.

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

We should always remember the power of Kannon in difficult times.

His father died of Creutzfeldt-Jakob disease.

He is an expert in psychiatry.

His father was diagnosed with schizophrenia in the past.

He was diagnosed with glycogenosis.

It seems that he is suffering from chuunibyou.