My younger sister is hospitalized with a childhood disease.

Prevention of infectious diseases affects not only individual health but also the health of the entire society.

He received a rabies vaccination.

He is suffering from a chronic disease.

I'm feeling down because of May sickness.

He was diagnosed with bipolar disorder and began treatment.

He got sunstroke because he was exposed to sunlight for a long time.

He is suffering from alopecia.

How does this pathogen infect humans?

My sick friend is fighting his illness with cheerfulness every day.