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An outbreak of foodborne norovirus gastroenteritis linked to a restaurant in Melbourne, Australia, 2014
INTRODUCTION: In May 2014 an outbreak of norovirus occurred among patrons of a restaurant in Melbourne, Australia. Investigations were conducted to identify the infectious agent, mode of transmission and source of illness, and to implement controls to prevent further transmission. METHODS: A retrosp...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
World Health Organization
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5516399/ https://www.ncbi.nlm.nih.gov/pubmed/28729921 http://dx.doi.org/10.5365/WPSAR.2017.8.1.008 |
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author | Coutts, Shaun P. Sturge, Kaye Lalor, Karin Marshall, John A. Bruggink, Leesa D. Subasinghe, Nela Easton, Marion |
author_facet | Coutts, Shaun P. Sturge, Kaye Lalor, Karin Marshall, John A. Bruggink, Leesa D. Subasinghe, Nela Easton, Marion |
author_sort | Coutts, Shaun P. |
collection | PubMed |
description | INTRODUCTION: In May 2014 an outbreak of norovirus occurred among patrons of a restaurant in Melbourne, Australia. Investigations were conducted to identify the infectious agent, mode of transmission and source of illness, and to implement controls to prevent further transmission. METHODS: A retrospective case-control study was conducted to test the hypothesis that food served at the restaurant between 9 and 15 May 2014 was the vehicle for infection. A structured questionnaire was used to collect demographic, illness and food exposure data from study participants. To ascertain whether any food handlers had experienced gastroenteritis symptoms and were a possible source of infection, investigators contacted and interviewed staff who had worked at the restaurant between 9 and 16 May 2014. RESULTS: Forty-six cases (including 16 laboratory-confirmed cases of norovirus) and 49 controls were interviewed and enrolled in the study. Results of the analysis revealed a statistically significant association with illness and consumption of grain salad (OR: 21.6, 95% CI: 1.8–252.7, P = 0.015) and beetroot dip (OR: 22.4, 95% CI: 1.9–267.0, P = 0.014). An interviewed staff member who reported an onset of acute gastrointestinal illness on 12 May 2014 had prepared salads on the day of onset and the previous two days. DISCUSSION: The outbreak was likely caused by person-to-food-to-person transmission. The outbreak emphasizes the importance of the exclusion of symptomatic food handlers and strict hand hygiene practices in the food service industry to prevent contamination of ready-to-eat foods and the kitchen environment. |
format | Online Article Text |
id | pubmed-5516399 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | World Health Organization |
record_format | MEDLINE/PubMed |
spelling | pubmed-55163992017-07-20 An outbreak of foodborne norovirus gastroenteritis linked to a restaurant in Melbourne, Australia, 2014 Coutts, Shaun P. Sturge, Kaye Lalor, Karin Marshall, John A. Bruggink, Leesa D. Subasinghe, Nela Easton, Marion Western Pac Surveill Response J Non theme issue INTRODUCTION: In May 2014 an outbreak of norovirus occurred among patrons of a restaurant in Melbourne, Australia. Investigations were conducted to identify the infectious agent, mode of transmission and source of illness, and to implement controls to prevent further transmission. METHODS: A retrospective case-control study was conducted to test the hypothesis that food served at the restaurant between 9 and 15 May 2014 was the vehicle for infection. A structured questionnaire was used to collect demographic, illness and food exposure data from study participants. To ascertain whether any food handlers had experienced gastroenteritis symptoms and were a possible source of infection, investigators contacted and interviewed staff who had worked at the restaurant between 9 and 16 May 2014. RESULTS: Forty-six cases (including 16 laboratory-confirmed cases of norovirus) and 49 controls were interviewed and enrolled in the study. Results of the analysis revealed a statistically significant association with illness and consumption of grain salad (OR: 21.6, 95% CI: 1.8–252.7, P = 0.015) and beetroot dip (OR: 22.4, 95% CI: 1.9–267.0, P = 0.014). An interviewed staff member who reported an onset of acute gastrointestinal illness on 12 May 2014 had prepared salads on the day of onset and the previous two days. DISCUSSION: The outbreak was likely caused by person-to-food-to-person transmission. The outbreak emphasizes the importance of the exclusion of symptomatic food handlers and strict hand hygiene practices in the food service industry to prevent contamination of ready-to-eat foods and the kitchen environment. World Health Organization 2017-05-05 /pmc/articles/PMC5516399/ /pubmed/28729921 http://dx.doi.org/10.5365/WPSAR.2017.8.1.008 Text en (c) 2017 The authors; licensee World Health Organization. This is an open access article distributed under the terms of the Creative Commons Attribution IGO License (http://creativecommons.org/licenses/by/3.0/igo/legalcode), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. In any reproduction of this article there should not be any suggestion that WHO or this article endorse any specific organization or products. The use of the WHO logo is not permitted. This notice should be preserved along with the article's original URL. |
spellingShingle | Non theme issue Coutts, Shaun P. Sturge, Kaye Lalor, Karin Marshall, John A. Bruggink, Leesa D. Subasinghe, Nela Easton, Marion An outbreak of foodborne norovirus gastroenteritis linked to a restaurant in Melbourne, Australia, 2014 |
title | An outbreak of foodborne norovirus gastroenteritis linked to a restaurant in Melbourne, Australia, 2014 |
title_full | An outbreak of foodborne norovirus gastroenteritis linked to a restaurant in Melbourne, Australia, 2014 |
title_fullStr | An outbreak of foodborne norovirus gastroenteritis linked to a restaurant in Melbourne, Australia, 2014 |
title_full_unstemmed | An outbreak of foodborne norovirus gastroenteritis linked to a restaurant in Melbourne, Australia, 2014 |
title_short | An outbreak of foodborne norovirus gastroenteritis linked to a restaurant in Melbourne, Australia, 2014 |
title_sort | outbreak of foodborne norovirus gastroenteritis linked to a restaurant in melbourne, australia, 2014 |
topic | Non theme issue |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5516399/ https://www.ncbi.nlm.nih.gov/pubmed/28729921 http://dx.doi.org/10.5365/WPSAR.2017.8.1.008 |
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