Event Types


A pandemic is an epidemic of disease that has spread across a large region; for instance multiple continents, or even worldwide. A widespread endemic disease that is stable in terms of how many people are getting sick from it is not a pandemic. Viruses that have caused past pandemics typically originated from animal influenza viruses. Some aspects of influenza pandemics can appear similar to seasonal influenza while other characteristics may be quite different.

  • There are roughly one 60 notable pandemics that have impacted the world