Question

difference between pathogens and causative microorganisms

Answer 1

A pathogen is something that causes disease.

A microorganism is a living thing that is to small to be seen by the naked eye.

Microorganisms can be pathogens if they cause disease. Microorganisms can produce toxic compounds, they can grow inside a host (infection) and cause immune responses and inflammation, and they can eat / attack tissues causing physical damage to cells or tissues.

The majority of microorganisms are not pathogenic. Some are opportunistic pathogens, meaning that they aren’t usually pathogenic but that can become pathogenic under specific circumstances (for example, if they infect an immuno-compromised individual).


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