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Volume 31, Number 8—August 2025
Etymologia
Mpox [em′poks] and Monkeypox Virus [muhng′kee poks′ vī-ruhs′]
Suggested citation for this article
Mpox, the infectious disease caused by monkeypox virus (MPXV), is characterized in humans by fever, lymphadenopathy, and a painful mucocutaneous rash. During 1958–1959, Danish virologist Preben von Magnus isolated the virus in macaque monkeys—hence, the name monkeypox. However, small mammals are likely the MPXV reservoir, not the aberrantly infected monkeys that received unwarranted blame as the host and created the misnomer monkeypox.
The derivation of the word monkey is shrouded in debate, antiquity, and complexity. The Oxford English Dictionary postulates Moneke referred to the son of Martin the Ape, a character in a collection of beloved European fables, Reynard the Fox, and the moniker might have accompanied continental showmen to England in the 1400s, but earlier variations of Moneke exist in other languages.
Pox, plural of pock, is Norman-French in origin from poque, meaning pouch. The diminutive form was poquet, or little pocket, describing the small scars remaining in the wake of various viral pustular eruptions, classically smallpox or syphilis. Plague and pox appear interchangeably in Shakespeare’s 1597 play Romeo and Juliet, in which Mercutio utters the famous and pejorative phrase, “A pox on both your houses.”
The first known human case of MPXV infection was reported in the Democratic Republic of the Congo in 1970. A global outbreak in 2022 was the first that involved widespread human-to-human MPXV transmission outside of Africa, prompting the World Health Organization to declare a Public Health Emergency. In November 2022, citing concerns of “racist and stigmatizing language” provoked by the original disease name, the World Health Organization renamed MPXV infection as mpox, but the virus name remains unchanged.
References
- News AP. WHO renames monkeypox as mpox, citing racism concerns [cited 2024 Feb 4]. https://apnews.com/article/who-renames-monkeypox-to-mpox
- BookBrowse. Well-known expressions: a plague on both your houses [cited 2024 Feb 4]. https://www.bookbrowse.com/expressions/detail/index.cfm/expression_number/666/a-plague-on-both-your-houses
- Haubrich WS. Medical meanings: a glossary of word options, 2nd edition. Philadelphia: American College of Physicians; 2003. p. 189.
- OUPblog. Wrenching an etymology out of a monkey [cited 2024 Feb 4]. https://blog.oup.com/2013/01/monkey-word-origin-etymology
- Rondle C. The natural history of smallpox. New Sci. 1978;20:680–2.
- Weiner ESC, Simpson JA. Compact edition of the Oxford English Dictionary. Oxford, England: Oxford University Press; 1971. p. 1838.
- World Health Organization. Mpox [cited 2024 Feb 4]. https://www.who.int/news-room/fact-sheets/detail/monkeypox
- World Health Organization. WHO recommends new name for monkeypox disease [cited 2024 Feb 4] https://www.who.int/news/item/28-11-2022-who-recommends-new-name-for-monkeypox-disease
Figures
Suggested citation for this article: Partin C. Mpox and monkeypox virus. Emerg Infect Dis. 2025 Aug [date cited]. https://doi.org/10.3201/eid3108.240211
Original Publication Date: July 10, 2025
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Table of Contents – Volume 31, Number 8—August 2025
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Please use the form below to submit correspondence to the authors or contact them at the following address:
Clyde Partin, Emory University, 1365 Clifton Rd NE, Atlanta GA 30322-1007, USA
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