co·​in·​fec·​tion | \ kō-in-ˈfek-shən How to pronounce coinfection (audio) \

Definition of coinfection

: concurrent infection of a cell or organism with two organisms

Other Words from coinfection

coinfect \ kō-​in-​ˈfekt How to pronounce coinfection (audio) \ transitive verb

Examples of coinfection in a Sentence

Recent Examples on the Web Whatever the historic prevalence of coinfection, the twindemic never happened last winter. Roxanne Khamsi, The Atlantic, 17 Nov. 2021 The authors speculate that the Furin cleavage site could be acquired upon coinfection with either another bat or some other exotic species. William A. Haseltine, Forbes, 6 Oct. 2021 Of those who didn’t have a coinfection, 36 percent stayed in the hospital for fewer than 5 days; 39 percent stayed between 5-7 days; and 24 percent stayed longer than a week. Kate Wells, Detroit Free Press, 27 Aug. 2020 One big concern is coinfection—people getting COVID-19 and flu at once, says Ian Barr, deputy director of the World Health Organization Collaborating Centre for Reference and Research on Influenza in Melbourne, Australia. Kelly Servick, Science | AAAS, 14 Aug. 2020 Other health officials confirmed with that coinfection of the flu and COVID-19 coronavirus is possible. cleveland, 18 Mar. 2020 There’s no direct advantage, Rivers says, because coinfection of both the flu and COVID-19 doesn’t appear to be common. Molly Glick, Popular Science, 10 Mar. 2020 The best data about coinfection come from studies of more serious viruses, such as H.I.V. and hepatitis. Richard Klasco, M.d., New York Times, 30 Mar. 2018 Wells suspects that she was exposed to hepatitis C during the same episode because coinfections were common in those days. Sandra G. Boodman,, 29 Sep. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'coinfection.' 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 coinfection

1974, in the meaning defined above

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Time Traveler for coinfection

Time Traveler

The first known use of coinfection was in 1974

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Dictionary Entries Near coinfection

coin dot



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Statistics for coinfection

Last Updated

1 Dec 2021

Cite this Entry

“Coinfection.” Dictionary, Merriam-Webster, Accessed 1 Dec. 2021.

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More Definitions for coinfection


co·​in·​fec·​tion | \ ˌkō-in-ˈfek-shən How to pronounce coinfection (audio) \

Medical Definition of coinfection

: concurrent infection of a cell or organism with two microorganisms pneumonia caused by coinfection with an orthomyxovirus and a streptococcus

Other Words from coinfection

coinfect \ -​ˈfekt How to pronounce coinfection (audio) \ transitive verb


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