1.Atmar, RL, Ramani, S and Estes, MK (2018) Human noroviruses: recent advances in a 50-year history. Current Opinion in Infectious Diseases 31, 422–432.
3.Heyman, DL (ed) (2015) Control of Communicable Diseases Manual, 20th Edn. Washington: American Public Health Association, pp. 218–220.
4.Keswick, BH et al. (1985) Inactivation of Norwalk virus in drinking water by chlorine. Applied and Environmental Microbiology 50, 261–264.
5.Butot, S, Putallaz, T and Sánchez, G (2008) Effects of sanitation, freezing and frozen storage on enteric viruses in berries and herbs. International Journal of Food Microbiology 126, 30–35.
6.Butot, S et al. (2009) Inactivation of enteric viruses in minimally processed berries and herbs. Applied and Environmental Microbiology 75, 4155–4161.
7.Green, KY (2013) Caliciviridae: the noroviruses. In Knipe, DM, Howley, PM, Cohen, JI, Griffin, DE, Lamb, RA, Martin, MA, Racaniello, VR and Roizman, B (eds), Fields Virology, 6th Edn. Philadelphia: Lippincott Williams & Wilkins, pp. 582–608.
8.Wu, HM et al. (2005) A norovirus outbreak at a long-term-care facility: the role of environmental surface contamination. Infection Control and Hospital Epidemiology 26, 802–810.
9.Torner, N et al. (2016) Epidemiology of acute gastroenteritis outbreaks caused by human calicivirus (Norovirus and Sapovirus) in Catalonia: a two year prospective study, 2010–2011. PLoS ONE 11, e0152503.
10.Ramani, S, Estes, MK and Atmar, RL (2016) Correlates of protection against norovirus infection and disease – where are we now, where do we go? PLoS Pathogens 12, e1005334.
11.Patel, MM et al. (2009) Noroviruses: a comprehensive review. Journal of Clinical Virology 44, 1–8.
12.Bryce, J et al. (2005) WHO estimates of the causes of death in children. The Lancet 365, 1147–1152.
13.Friesema, I et al. (2009) Norovirus outbreaks in nursing homes: the evaluation of infection control measures. Epidemiology and Infection 137, 1722–1733.
14.Desai, R et al. (2012) Severe outcomes are associated with genogroup 2 genotype 4 norovirus outbreaks: a systematic literature review. Clinical Infectious Diseases 55, 189–193.
16.Marsh, ZA et al. (2018) The unwelcome houseguest: secondary household transmission of norovirus. Epidemiology and Infection 146, 159–167.
17.Alfano-Sobsey, E et al. (2012) Norovirus outbreak associated with undercooked oysters and secondary household transmission. Epidemiology and Infection 140, 276–282.
18.Heun, EM et al. (1987) Risk factors for secondary transmission in households after a common-source outbreak of Norwalk gastroenteritis. American Journal of Epidemiology 126, 1181–1186.
19.Gastañaduy, PA et al. (2015) Transmission of norovirus within households in Quininde, Ecuador. Pediatric Infectious Disease Journal 34, 1031–1033.
20.Kageyama, T et al. (2003) Broadly reactive and highly sensitive assay for Norwalk-like viruses based on real-time quantitative reverse transcription-PCR. Journal of Clinical Microbiology 41, 1548–1557.
21.Farkas, T et al. (2015) Multiplex real-time RT-PCR for the simultaneous detection and quantification of GI, GII and GIV noroviruses. Journal of Virological Methods 223, 109–114.
22.Kojima, S et al. (2002) Genogroup-specific PCR primers for detection of Norwalk-like viruses. Journal of Virological Methods 100, 107–114.
23.Anon (2013) .
24.Fontaine, RE and Goodman, RA (2008) Describing the findings: descriptive epidemiology. In Gregg, MB (ed.), Field Epidemiology, 3rd Edn. New York: Oxford University Press, pp. 156–198.
25.Becker, KM et al. (2000) Transmission of Norwalk virus during a football game. The New England Journal of Medicine 343, 1223–1227.
26.Ushijima, H et al. (2014) Norovirus and foodborne disease: a review. Food Safety 2, 37–54.
27.Huang, J et al. (2013) Serial foodborne norovirus outbreaks associated with multiple genotypes. Serial norovirus outbreaks of tourists in Xiamen. PLoS ONE 8, e63327.
28.Blanco, A et al. (2017) Norovirus in bottled water associated with gastroenteritis outbreak, Spain, 2016. Emerging Infectious Diseases 23, 1531–1534.
29.Lindsay, L et al. (2015) A decade of norovirus disease risk among older adults in upper-middle and high income countries: a systematic review. BMC Infectious Diseases 15, 425.
30.Green, KY et al. (2002) A predominant role for Norwalk-like viruses as agents of epidemic gastroenteritis in Maryland nursing homes for the elderly. Journal of Infectious Diseases 185, 133–146.
31.Utsumi, M et al. (2010) Types of infectious outbreaks and their impact in elderly care facilities: a review of the literature. Age and Ageing 39, 299–305.
32.Petrignani, M et al. (2015) Norovirus introduction routes into nursing homes and risk factors for spread: a systematic review and meta-analysis of observational studies. Journal of Hospital Infection 89, 163–178.
33.Godoy, P et al. (2006) Brote de norovirus de transmisión persona a persona en una residencia asistida. Medicina Clínica 127, 538–541.
34.González Morán, F et al. (2002) Nosocomial epidemic outbreak of acute gastroenteritis by Norwalk-like virus. Medicina Clínica 118, 611–615.
35.Mayoral Cortés, JM et al. (2000) Outbreak of gastroenteritis at an old people's home in Albacete. Revista Española de Salud Pública 74, 561–572.
36.Colombo, F et al. (2011) Long-term Care: Growing Sector, Multifaceted Systems. In Help Wanted?: Providing and Paying for Long-Term Care, OECD Publishing, pp. 44–45.
37.Sukhrie, FH et al. (2012) Nosocomial transmission of norovirus is mainly caused by symptomatic cases. Clinical Infectious Diseases 54, 931–937.
38.Bartsch, SM et al. (2016) Global economic burden of norovirus gastroenteritis. PLoS ONE 11, e0151219.
39.Navas, E et al. (2015) Economic costs of outbreaks of acute viral gastroenteritis due to norovirus in Catalonia (Spain), 2010–2011. BMC Public Health 15, 999.