(a) Viral fever, Flu

A disease or disorder that lasts a short time, comes on rapidly, and is accompanied by distinct symptoms. Example is Viral fever and Flu.

(b) Elephantiasis, Tuberculosis (TB)

A disease that lasts for more a time-period of more than 3 months then, it is called chronic disease. Generally, cannot be prevented by vaccines or cured by medication, nor do they just disappear.

(c) Small pox, Chicken pox

Infectious diseases are caused by pathogenic microorganisms, such as bacteria, viruses, parasites or fungi; the diseases can be spread, directly or indirectly, from one person to another.

(d) Diabetes, Goitre

A disease that is not contagious is called a non-infectious disease. These diseases are not caused by pathogens. Instead, they are likely to have causes such as lifestyle factors, environmental toxins, or gene mutations within an individual.