differentiate between infectious and noninfectious diseases with suitable example and it carries 3 marks
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1. Infectious diseases are caused by pathogens ; Non infectious diseases are caused by factors other than pathogens .
2. The Infectious diseases are brought by extrinsic factors ; Non infectious diseases are mostly caused by intrinsic factors .
3. Infectious diseases can spread from the infected person to healthy persons ; Non infectious diseases cannot spread from one person to another.
4. In infectious diseases transmission of infection occurs through direct contact or some medium ; In non infectious diseases , transmission is absent (except hereditary diseases).
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