Salmonella Braenderup Restaurant Outbreak Investigation ¡ª Minnesota, 2024

What to know

  • Presentation Day/Time: Tuesday, April 22, 10:55 am–12:20 pm
  • Presenter: Emily Silva, PhD, SM, EIS officer assigned to the Minnesota Department of Health
Emily Silva, PhD, SM

What did we do?

  • In August 2024, the Minnesota Department of Health investigated a restaurant outbreak of Salmonella Braenderup identified through routine surveillance. We conducted case-control analyses to identify illness source and stop transmission.

What did we find?

  • Contaminated eggs introduced Salmonella into Restaurant A. Epidemiologic, laboratory, and environmental evidence demonstrated subsequent Salmonella transmission from infected employees to patrons through ready-to-eat foods.

Why does it matter?

  • This investigation adds to the evidence base that infected food workers can be an importance source of transmission in restaurant outbreaks, regardless of the initial source.
  • Testing and excluding infected employees was key to stopping transmission, reinforcing these recommendations to control restaurant-associated salmonellosis outbreaks.

Field Photo

EIS officer Emily Silva collects environmental samples while investigating a Salmonella outbreak at a restaurant in Minnesota.
EIS officer Emily Silva collects environmental samples while investigating a Salmonella outbreak at a restaurant in Minnesota.

Abstract Category: Salmonella

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Content Source:
About Public Health Infrastructure Center; Epidemic Intelligence Service