Norwalk-like viruses (NLV), also known as small, round-structured viruses (SRSV) or caliciviruses, typically spread via contaminated food or water and cause epidemics of gastroenteritis. These viruses are named for the strain that first caused an epidemic in Norwalk, Ohio.
NLV is spread by contact with infected individuals or through the consumption of contaminated food and water. Anyone is susceptible to NLV infection, however adults and older kids are more likely to experience severe complications. Furthermore, since these viruses have various strains, individuals might get ill from them several times. The virus can be transmitted through feces and vomit.
Epidemics have been associated with sick kitchen staff, contaminated seafood, and sewage-infected water. Generally, the virus is transmitted from person to person by direct touch; however, certain medical studies indicate that the virus may be transmitted through the air when vomiting.
