Last revised by Dr Daniel J Bell on 08 Jun 2020

The prevalence is an epidemiological term referring to the proportion that reflects total disease/condition burden in a population at a specific time.

There are different kinds of prevalence:

  • point prevalence is the amount of disease at one point in time
  • period prevalence is prevalence over a specific period of time
  • lifetime prevalence relates to events over the entire lifetime of people in a population

See also

ADVERTISEMENT: Supporters see fewer/no ads

Cases and figures

  • Map of global prevalence of tuberculosis
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.