A 45-year-old member asked:
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What is the main difference between infectious and non-infectious diseases?

1 doctor answer
Dr. Joel Gallant
35 years experience in Infectious Disease
Microorganisms: Infectious diseases are caused by pathogenic microorganisms: bacteria, viruses, fungi, and parasites. Everything else is non-infectious (except for the "non-infectious" diseases that will turn out to be infectious once we figure out what really causes them).
Answered on Jun 23, 2015

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