Epidemic Vs Pandemic Definition. A pandemic is a type of epidemic (one with greater range and coverage), an outbreak of a disease that occurs over a wide geographic area and affects an exceptionally high proportion of the population. Endemic is something that belongs to a particular people or country.

Differences between a flu epidemic and a flu pandemic a seasonal flu epidemic is usually caused by an existing flu strain that increases in a certain geographic area. The worldwide spreading of a new disease is known as pandemic. A pandemic covers several countries or spreads from one continent to another.