prevalence

noun
prev·​a·​lence | \ ˈpre-və-lən(t)s How to pronounce prevalence (audio) , ˈprev-lən(t)s\

Definition of prevalence

1 : the quality or state of being prevalent
2 : the degree to which something is prevalent especially : the percentage of a population that is affected with a particular disease at a given time

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Examples of prevalence in a Sentence

the prevalence of rumors when hard information is withheld from the public

Recent Examples on the Web

Recent Hong Kong University Faculty of Medicine research found there was a 9.1% increase in the prevalence of probable depression among participants surveyed between June 22 and July 7 compared with the baseline in 2011 to 2014. Julia Hollingsworth, CNN, "How four deaths turned Hong Kong's protest movement dark," 21 July 2019 These types of centers have been growing in prevalence in the past few years: there are a few other infusion centers in the greater Houston region, but this is the first one geared specifically toward ketamine in The Woodlands. Jane Stueckemann, Houston Chronicle, "The Woodlands gets first ketamine infusion center to treat depression," 9 July 2019 Epidemiologic studies of homeless populations have found higher prevalence of HIV, hepatitis, tuberculosis and scabies. Chris Woodyard, USA TODAY, "As homeless are suffering, risk of hepatitis, typhus and other diseases is growing," 18 June 2019 The prevalence of resistance in people who restarted efavirenz and nevirapine after interrupting treatment was much higher (21%) than in first-time users (8%). Scientific American, "Alarming Surge in Drug-Resistant HIV Uncovered," 30 July 2019 Young and elderly at greatest risk Even though education and awareness has increased over the years, the prevalence of heat exhaustion may be on the rise. Scott Lear, Quartzy, "The best ways to exercise in summer heat," 12 July 2019 The smart home device Achilles heel: Using default passwords The prevalence of Internet of Things devices that ship with default passwords is nothing new. Xavier Harding, Fortune, "'Silex' Malware Renders Internet-of-Things Devices Useless. Here's How to Prevent It," 26 June 2019 The prevalence of dark patterns across the web is unknown, but in a study released this week, researchers from Princeton University have started to quantify the phenomenon, focusing first on retail companies. New York Times, "How E-Commerce Sites Manipulate You Into Buying Things You May Not Want," 24 June 2019 Buzz60 The prevalence of technology in our day-to-day life is shaping our lives and bodies in unexpected, and sometimes alarming, ways. Joshua Bote, USA TODAY, "Can you get 'horns' from smartphone use? Here are some problems our devices cause," 20 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'prevalence.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of prevalence

1682, in the meaning defined at sense 1

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More Definitions for prevalence

prevalence

noun
prev·​a·​lence | \ ˈpre-və-ləns How to pronounce prevalence (audio) \

Kids Definition of prevalence

: the state of happening, being accepted, or being practiced often or over a wide area

prevalence

noun
prev·​a·​lence | \ ˈprev(-ə)-lən(t)s How to pronounce prevalence (audio) \

Medical Definition of prevalence

: the percentage of a population that is affected with a particular disease at a given time — compare incidence sense 2b

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