definitions of key terms.

topic 1, key terms you need for the exam.

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  • Created by: Charlotte
  • Created on: 30-03-11 13:00
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Infection ­ When micro organisms get past the external barriers
Disease ­ When an infection has a negative consequence
Pathogen ­ A micro organism that causes disease
Sign- the visible features of a disease
Symptom ­ the non visible features felt by the sufferer
Incubation period ­ Time between infection and signs/ symptoms
Epidemic ­ Widespread outbreak of disease
Pandemic ­ international widespread outbreak
Transmission ­ passing the pathogen to another individual
Carrier ­ carrying the pathogen without suffering the signs or symptoms

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