What are pathogens?

The term pathogen is taken from the Greek word, where 'pathos' means 'diseases', 'suffering' and 'genes' means 'producer of' or 'born of'. 

Typically the term is used to describe an infectious microorganism or agent, such as a virus, bacterium, protozoan, prion, viroid, or fungus or anything that can produce disease. It may also be referred to as an infectious agent, or simply a germ.

The study of diseases that includes these pathogens is called pathology.

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Updated on: 10-Oct-2022

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