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GCSE Combined Science · key term
A disease caused by a pathogen that can spread between organisms.
Used by AQA and Edexcel
Specification 4.2.2.5, 4.3.1.1 · Paper 1
An illness caused by a pathogen that can spread between organisms.
Revise: Health issuesCommunicable diseases are caused by pathogens that can spread between organisms. Tuberculosis and flu are examples. Non-communicable diseases cannot be passed from one person to another; examples include coronary heart disease and arthritis.
Paper 1, Paper 2
A disease that can be passed between individuals through the spread of its pathogen.
Revise: Health and Communicable DiseasesA communicable disease can be passed between individuals because its pathogen can spread from one host to another. A host is an organism in which a pathogen lives. Transmission does not always require the hosts to touch: pathogens can travel through water, air or an animal that carries them.
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