Posted by ROSHAN B.S on Aug. 25, 2014, 7:42 p.m.
A pathogen (Greek: ????? pathos “suffering, passion” and -????? -gen?s “producer of”) in the oldest and broadest sense is anything that can produce disease.[1] Typically the term is used to mean an infectious agent (colloquially known as a germ) — amicroorganism, in the widest sense such as a virus, bacterium, prion, fungus or protozoan, that causes disease in its host. The host may be an animal, a plant, a fungus or even another microorganism