Pathogens can pose a significant threat to human health.

This pathogen is a new type of virus.

He died of disease at a young age.

My father made a new seedbed in the garden.

He is suffering from depression.

He is my sick friend, and we often go to the hospital together.

My hobby is tending seedlings.

Every day, I tend seedlings in the garden.

He is an expert in pathology.

She was diagnosed with Addison's disease.