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norovirus

American  
[nawr-oh-vahy-ruhs] / ˈnɔr oʊˌvaɪ rəs /

noun

noroviruses plural
  1. any of various single-stranded RNA viruses of the genus Norovirus, of the family Caliciviridae: the most common cause of epidemic viral gastroenteritis in humans.


norovirus British  
/ ˈnɔːrəʊˌvaɪrəs /

noun

  1. a virus which is a common cause of gastroenteritis

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of norovirus

1970–75; < Nor(walk) virus (with connective -o- )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Chipotle in 2020 agreed to pay a $25 million fine in connection to the string of illnesses, which included outbreaks of norovirus, a pathogen that can be transmitted by food workers.

From The Wall Street Journal Jul. 16, 2026

More than 100 passengers were sickened in a recent norovirus outbreak on the Ruby Princess cruise ship that departed from California last month and arrived back at port Thursday.

From Los Angeles Times Jul. 2, 2026

That’s not even the only cruise in the news right now for public health reasons—a norovirus outbreak on a ship called Ambition recently made dozens of passengers sick shortly after the trip began.

From Slate May 16, 2026

The big outbreaks on cruise ships, outside of COVID, are typically norovirus cases.

From The Wall Street Journal May 8, 2026

Like, when Anna got the norovirus last year, Morgan and I reenacted the fight she missed in the lunchroom.

From "Leah on the Offbeat" by Becky Albertalli

It also could include tuberculosis bacteria, measles, seasonal flu, and the noroviruses that cause stomach bugs, Saif and others suggest.

From Science Magazine Oct. 18, 2022

While cholera is caused by bacteria, water transmits viruses too, including hepatitis A and E viruses, rotaviruses, noroviruses and polioviruses.

From Washington Post Sep. 1, 2022

Good hygiene is the key to avoiding noroviruses, suggests WebMD.com.

From Seattle Times Apr. 7, 2022

It has been used in low- and middle-income countries in the fight to eradicate polio, for instance, and has been proposed as a way to keep tabs on noroviruses, a common cause of stomach bugs.

From New York Times May 7, 2021

Research suggests that some hand sanitizers don’t kill noroviruses, and neither do regular Lysol or Clorox disinfectant wipes.

From Slate Jan. 16, 2017

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