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  • Created by: Katie
  • Created on: 07-01-10 16:10

Microorganisms that cause disease = pathogens

3 types of pathogen : - bacteria - fungus - virus

Disease is when the body or mind ‘malfunctions’ – preventing good health

A microorganism is only a pathogen if it can:

gain access to the host

colonise the tissues of the host

resist the defences of the host

cause damage to the host tissue

How pathogens cause disease - Infection – when a pathogen gets into the host etc.

- Disease – when


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