Norwalk-like gastroenteritis epidemic in a Toronto hospital.

Abstract

An epidemic of gastroenteritis in a teaching hospital affected 57 patients and 69 staff over a 26-day period. The index case was a patient admitted with acute abdominal pain and diarrhea two days prior to the outbreak. The epidemic curve indicated personto-person transmission. The incubation period, duration and types of

Detection, Quantitation, and Phylogenetic Analysis of Noroviruses in Japanese Oysters

“…NV genomes have been detected in shellfish such as oysters and clams in the United States (9,14,22), United Kingdom (17), Canada (16), and Japan (23), and these viruses are associated with gastroenteritis in humans. NVs can be divided into two genogroups, each of which can be further divided into four to six clusters (4).…”

A prospective study of nosocomial enteric pathogen acquisition in hospitalized children in South India

“…8 Viral nosocomial infection with rotaviruses 9-11 and caliciviruses 12 are common in developed countries, with up to 69 per cent isolation rates in nosocomial diarrhoea. 9 Other viral agents reported from children with nosocomial gastrointestinal infections include adenoviruses, 13 Norwalk virus, 14 astroviruses, 15 and toroviruses. 16 Nosocomial infections with parasites have not been reported, although outbreaks of gastrointestinal infections due to Giardia 17 and Cryptosporidium 18 have been documented in day-care centres and hospitals.…”

Evaluation of the Impact of the Source (Patient Versus Staff) on Nosocomial Norovirus Outbreak Severity

“…From 19 publications and 1 personal communication, 62 outbreak wards including 2,036 individuals were included for analyses (Table 1). 3,[6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] In 25 (40%) of the outbreaks, patients were the index; in 16 (26%), staff were the index. The index could not be identified in 21 (34%) of the outbreaks.…”

“…September to UK Elderly care unit 4 97 S, S, S, U -and Wills 9 October 1983 Leers et al 10 15 internal medicine Green January 1994 UK Internal medicine 1 50 P P P et al 16 Elderly 17…”