Research – Salmonella Typhimurium outbreak associated with frozen tomato cubes at a restaurant in western Finland, January to February 2021

Eurosurveillance

On 2 February 2021, a local environmental health authority in western Finland notified the National Registry for Food and Waterborne Outbreaks about six cases of  infection suspected to be related to a local lunch restaurant in a region where there had been between one and three salmonellosis cases per month. More cases were soon discovered that were linked to food eaten at the same restaurant on the days 27–29 January 2021, and the Finnish Institute for Health and Welfare (THL) was informed of 44 outbreak-related cases. The estimated number of potentially exposed persons was 400. THL and the Finnish Food Authority joined the local outbreak investigation team to support and coordinate the epidemiological and microbiological investigations.

We report here a food-borne outbreak caused by a non-monophasic multidrug-resistant  Typhimurium strain that was not detected in Finland before.

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