Traceback and Testing of Food Epidemiologically Linked to a Norovirus Outbreak at a Wedding Reception

We investigated a suspected norovirus outbreak associated with a wedding reception in Wisconsin in May 2015. Fifty-six of 106 (53%) wedding attendees were interviewed, and 23 (41%) reported symptoms consistent with norovirus infection. A retrospective cohort study identified fruit salad as the likel...

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Main Authors: Efstathia Papafragkou, Amanda Kita-Yarbro, Zihui Yang, Preeti Chhabra, Timothy Davis, James Blackmore, Courtney Ziemer, Rachel Klos, Aron J. Hall, Jan Vinjé
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Journal of Food Protection
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Online Access:http://www.sciencedirect.com/science/article/pii/S0362028X24001790
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author Efstathia Papafragkou
Amanda Kita-Yarbro
Zihui Yang
Preeti Chhabra
Timothy Davis
James Blackmore
Courtney Ziemer
Rachel Klos
Aron J. Hall
Jan Vinjé
author_facet Efstathia Papafragkou
Amanda Kita-Yarbro
Zihui Yang
Preeti Chhabra
Timothy Davis
James Blackmore
Courtney Ziemer
Rachel Klos
Aron J. Hall
Jan Vinjé
author_sort Efstathia Papafragkou
collection DOAJ
description We investigated a suspected norovirus outbreak associated with a wedding reception in Wisconsin in May 2015. Fifty-six of 106 (53%) wedding attendees were interviewed, and 23 (41%) reported symptoms consistent with norovirus infection. A retrospective cohort study identified fruit salad as the likely vehicle of infection (risk ratio 3.2, 95% confidence interval 1.1––8.3). Norovirus was detected by real-time reverse transcription polymerase chain reaction (RT-qPCR) in stool specimens collected from four attendees and one food handler and in 12 leftover fruit salad samples from both an opened and a sealed container. Norovirus-positive clinical samples (n = 4) were genotyped as GII.4 Sydney and norovirus-positive fruit salad samples (n = 2) confirmed the presence of GII.4 norovirus by Sanger sequencing with 98% nucleotide (n = 236) similarity in 5′ end of ORF2 between fruit salad and clinical specimens. In conclusion, this comprehensive norovirus outbreak investigation combined epidemiologic, virologic, and environmental findings to traceback the contaminated food as the source of the outbreak.
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publisher Elsevier
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series Journal of Food Protection
spelling doaj-art-15bd61e9b5f24a879dba547b87c42c1a2025-01-09T06:12:29ZengElsevierJournal of Food Protection0362-028X2025-01-01881100395Traceback and Testing of Food Epidemiologically Linked to a Norovirus Outbreak at a Wedding ReceptionEfstathia Papafragkou0Amanda Kita-Yarbro1Zihui Yang2Preeti Chhabra3Timothy Davis4James Blackmore5Courtney Ziemer6Rachel Klos7Aron J. Hall8Jan Vinjé9Food and Drug Administration, Laurel, Maryland, United States; Corresponding author.Public Health Madison & Dane County, Madison, Wisconsin, United StatesFood and Drug Administration, Laurel, Maryland, United StatesCenters for Disease Control and Prevention, Atlanta, Georgia, United StatesWisconsin State Laboratory of Hygiene, Madison, Wisconsin, United StatesPublic Health Madison & Dane County, Madison, Wisconsin, United StatesPublic Health Madison & Dane County, Madison, Wisconsin, United StatesWisconsin Department of Health Services, Division of Public Health, United StatesCenters for Disease Control and Prevention, Atlanta, Georgia, United StatesCenters for Disease Control and Prevention, Atlanta, Georgia, United StatesWe investigated a suspected norovirus outbreak associated with a wedding reception in Wisconsin in May 2015. Fifty-six of 106 (53%) wedding attendees were interviewed, and 23 (41%) reported symptoms consistent with norovirus infection. A retrospective cohort study identified fruit salad as the likely vehicle of infection (risk ratio 3.2, 95% confidence interval 1.1––8.3). Norovirus was detected by real-time reverse transcription polymerase chain reaction (RT-qPCR) in stool specimens collected from four attendees and one food handler and in 12 leftover fruit salad samples from both an opened and a sealed container. Norovirus-positive clinical samples (n = 4) were genotyped as GII.4 Sydney and norovirus-positive fruit salad samples (n = 2) confirmed the presence of GII.4 norovirus by Sanger sequencing with 98% nucleotide (n = 236) similarity in 5′ end of ORF2 between fruit salad and clinical specimens. In conclusion, this comprehensive norovirus outbreak investigation combined epidemiologic, virologic, and environmental findings to traceback the contaminated food as the source of the outbreak.http://www.sciencedirect.com/science/article/pii/S0362028X24001790Foodborne outbreakNorovirusOutbreak investigationProduce
spellingShingle Efstathia Papafragkou
Amanda Kita-Yarbro
Zihui Yang
Preeti Chhabra
Timothy Davis
James Blackmore
Courtney Ziemer
Rachel Klos
Aron J. Hall
Jan Vinjé
Traceback and Testing of Food Epidemiologically Linked to a Norovirus Outbreak at a Wedding Reception
Journal of Food Protection
Foodborne outbreak
Norovirus
Outbreak investigation
Produce
title Traceback and Testing of Food Epidemiologically Linked to a Norovirus Outbreak at a Wedding Reception
title_full Traceback and Testing of Food Epidemiologically Linked to a Norovirus Outbreak at a Wedding Reception
title_fullStr Traceback and Testing of Food Epidemiologically Linked to a Norovirus Outbreak at a Wedding Reception
title_full_unstemmed Traceback and Testing of Food Epidemiologically Linked to a Norovirus Outbreak at a Wedding Reception
title_short Traceback and Testing of Food Epidemiologically Linked to a Norovirus Outbreak at a Wedding Reception
title_sort traceback and testing of food epidemiologically linked to a norovirus outbreak at a wedding reception
topic Foodborne outbreak
Norovirus
Outbreak investigation
Produce
url http://www.sciencedirect.com/science/article/pii/S0362028X24001790
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