norovirus

noun
nor·​o·​virus | \ˈnȯr-ə-ˌvī-rəs \

Definition of norovirus 

: any of a genus (Norovirus) of small, round, single-stranded RNA viruses that includes a single species (species Norwalk virus) with various strains causing gastroenteritis in people and animals (such as cows, pigs, and dogs) People spread the virus by eating food or drinking liquids that are contaminated with norovirus, touching surfaces or objects contaminated with norovirus and then touching their mouth or having direct contact with another person who is infected.— Cherie Black

Note: In people, noroviruses cause gastroenteritis marked chiefly by sudden onset diarrhea, vomiting, nausea, and abdominal cramps.

— see norwalk virus

Examples of norovirus in a Sentence

Recent Examples on the Web

In that case, health officials confirmed that norovirus, also known as a really nasty kind of stomach flu, was the source of the sickness. Elly Belle, Teen Vogue, "Over 600 People Got Sick After Eating at Chipotle," 10 Aug. 2018 The Vessel Sanitation Program randomly inspects ships that dock at U.S. ports at least twice a year to help control the spread of gastrointestinal illnesses like norovirus. Chabeli Herrera, chicagotribune.com, "More cruise ships failed sanitation inspections in 2017 than any other year," 27 Feb. 2018 The Vessel Sanitation Program randomly inspects ships that dock at U.S. ports at least twice a year to help control the spread of gastrointestinal illnesses like norovirus. Chabeli Herrera, miamiherald, "More cruise ships failed sanitation inspections in 2017 than any other year," 14 Feb. 2018 Photo: Chipotle Chipotle’s revenue and reputation have suffered after food-safety issues in recent years, including E. Coli, salmonella and norovirus cases traced back to local restaurants. Alexandra Bruell, WSJ, "Chipotle Gets ‘Real’ in New Ads Focused on Fresh Ingredients," 24 Sep. 2018 The lockdown came on the heels of a norovirus outbreak that put the unit on medical restriction. Keri Blakinger, Houston Chronicle, "Inmate families, advocates say hunger strike larger than reported," 18 Apr. 2018 The program aims to control the spread of gastrointestinal illnesses, such as norovirus, on cruise vessels. Chabeli Herrera, miamiherald, "On eight cruises in a row, passengers got ‘violently ill.’ A lawsuit may be coming," 6 Feb. 2018 Western Connecticut State University was closed Monday after more than 100 students were sickened from norovirus, a highly contagious virus that affects the digestive tract and causes vomiting, diarrhea and stomach pains. Matthew Ormseth, courant.com, "Western Connecticut State University Closes Monday After Norovirus Sickens 100 Students," 23 Apr. 2018 The trials have been used to test vaccines or treatments for dengue, malaria, influenza and norovirus, among other diseases. Emily Baumgaertner, New York Times, "Ethicists Call for More Scrutiny of ‘Human-Challenge’ Trials," 20 Apr. 2018

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

2002, in the meaning defined above

History and Etymology for norovirus

New Latin, from English Norwalk virus + New Latin -o- + virus

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Dictionary Entries near norovirus

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norovirus

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Norrköping

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Last Updated

9 Dec 2018

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The first known use of norovirus was in 2002

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More Definitions for norovirus

norovirus

noun
nor·​o·​virus | \ˌnȯr-ō-ˈvī-rəs \

Medical Definition of norovirus 

1 capitalized : a genus of small, round, single-stranded, highly infectious RNA viruses that includes a single species (species Norwalk virus) with various strains causing gastroenteritis in people and animals (such as cows and dogs)

2 : any virus of the genus Norovirus People spread the virus by eating food or drinking liquids that are contaminated with norovirus, touching surfaces or objects contaminated with norovirus and then touching their mouth or having direct contact with another person who is infected.— Cherie Black, The Seattle Post-Intelligencer, 29 Dec. 2006

Note: In people, noroviruses cause gastroenteritis marked chiefly by sudden onset, diarrhea, vomiting, nausea, and abdominal cramps.

— see norwalk virus

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