Differentiate between infectious and non-infectious diseases.


A disease is a condition that deteriorates the normal functioning of the cells, tissues, and organs. The two types of disease are infectious diseases and non-infection diseases.

Infectious diseases

Non-infectious diseases

Diseases that spread from one person to another are called communicable diseases.

They do not spread to others and they restrain within a person who has contracted them

They are caused by microorganisms called pathogens such as bacteria, protozoans, viruses, etc.

These diseases are caused by pathogens, but other factors such as age, nutritional deficiency, gender of an individual, and lifestyle also influence the disease

Examples: Cholera, chickenpox, malaria

Examples: Diabetes, cancer, asthma, etc.

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