What is the main difference between infectious and noninfectious diseases?

What is the main difference between infectious and noninfectious diseases?

A disease is an illness or condition that prevents your body from working the way it normally would. Diseases can be infectious or noninfectious. Infectious diseases are contagious and can be transmitted to other people. They are caused by pathogens that you might also refer to as germs.

What is the difference between a virus and a disease?

Viruses are smaller than bacteria and can't survive without a living host. A virus attaches itself to cells and usually reprograms them to reproduce itself. Also, unlike bacteria, most viruses do cause disease. Some virus-caused diseases include the common cold, AIDS, herpes, and chickenpox.

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