what is the extrinsic factor of disease
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Extrinsic factors such as climatic conditions and environmental characteristics [1–3], and intrinsic factors such as host characteristics [4, 5] influence pathogen transmission.
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The disease causing factors which enter the human body from outside are called extrinsic factors. Such as:
Unbalanced diet or inadequate diet.
Disease causing microorganisms such as viruses, bacteria, fungi, protozoans etc.
Environmental pollutants.
Tobacco, alcohol and narcotic drugs.
Explanation:
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