He has laughing sickness, and he can't stop laughing.

He needs special care because of his inherited disease.

He says 'sickness and health start with the mind,' and strives to have positive thoughts every day.

She was diagnosed with Addison's disease.

My grandfather has been suffering from diabetes for many years.

My grandmother is suffering from Alzheimer's disease.

He is suffering from alopecia.

How does this pathogen infect humans?

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

He is suffering from a chronic disease.