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GCSE Combined Science · key term
The entry and multiplication of a pathogen in or on a host.
Used by OCR
Specification B6.3d · Biology Paper 2
Revise: Spread of Communicable DiseasesTransmission and infection are connected but different. Transmission is the passing of a pathogen to another organism; infection occurs when the pathogen enters and multiplies in or on that host. Exposure does not always lead to infection.
Biology, Combined Science
The entry and multiplication of a pathogen in a host organism.
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Diseases also vary in their effects: a localised skin infection and a disease that damages the immune system affect the body very differently.
