Protracted, Intermittent Outbreak of Salmonella Mbandaka Linked to a Restaurant — Michigan, 2008–2019

What is already known about this topic? Restaurant outbreaks of Salmonella with Salmonella-positive environmental samples might result in a higher proportion of Salmonella-positive food workers and longer outbreaks. What is added by this report? A protracted restaurant-associated outbreak of Salmone...

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Bibliographic Details
Published in:MMWR. Morbidity and mortality weekly report 2021-08, Vol.70 (33), p.1109-1113
Main Authors: Nettleton, William D, Reimink, Bethany, Arends, Katherine D, Potter, Douglas, Henderson, Justin J, Dietrich, Stephen, Franks, Mary
Format: Article
Language:English
Subjects:
Antibiotics
Asymptomatic
Employees
Environmental monitoring
Environmental testing
Food
Food contamination & poisoning
Full Report
Gene sequencing
Genomes
Genomics
Health aspects
Infection
Laboratories
Outbreaks
Patients
Public health
Questionnaires
Restaurants
Salmonella
Salmonella food poisoning
Sampling
Whole genome sequencing
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Summary:What is already known about this topic? Restaurant outbreaks of Salmonella with Salmonella-positive environmental samples might result in a higher proportion of Salmonella-positive food workers and longer outbreaks. What is added by this report? A protracted restaurant-associated outbreak of Salmonella Mbandaka in Michigan was identified through recursive case interviewing, asymptomatic employee testing, and environmental sampling. Multiple efforts to eradicate the organism failed, and the restaurant was permanently closed in 2018. What are the implications for public health practice? Coupling asymptomatic food worker testing and environmental sampling for Salmonella with whole genome sequencing of case isolates in suspected, protracted restaurant outbreaks of Salmonella enhances source identification. Exclusion or restriction of asymptomatic food workers with nontyphoidal Salmonella should be considered part of restaurant outbreak mitigation.
ISSN:0149-2195
1545-861X
DOI:10.15585/mmwr.mm7033a1