What's the difference between
an epidemic 
and a pandemic?

What's the difference between pandemic and epidemic?


  • A disease is termed an epidemic when is spreads to an unusually large number of people, it may impact a whole community.

  • The key factor is that a large number of people are affected at the same time.
  • When a disease crosses international borders, affecting a large number of people in difference countries, it is termed a pandemic.

  • An example of an epidemic is the Great Plague which was spread by rat fleas in London in the 17th century

  • An example of a pandemic is coronavirus. The World Health Organisation declared it to be a pandemic in March 2020.
  • Initially, coronavirus had behaved as an epidemic in China and then in northern Italy, before it spread rapidly in geographical terms as well as terms of the number of people affected.



This is not a medical guide.
If you have health concerns,
please consult
a more serious source.