Finnish Salmonella outbreak linked to frozen tomato product

Frozen tomato cubes had been behind a Salmonella Typhimurium outbreak in Finland in 2021, based on a brand new research.

It’s regarded as the primary outbreak within the nation linked to a frozen tomato product and the implicated pressure had not been detected in Finland earlier than.

A number of individuals reported signs following meals in late January 2021 at a restaurant in western Finland, based on the research report printed within the journal Eurosurveillance.

The Finnish Institute for Well being and Welfare (THL) was knowledgeable of 44 outbreak-related sufferers. THL and the Finnish Meals Authority (Ruokavirasto) joined the native outbreak investigation crew to assist with the epidemiological and microbiological work.

Altogether, 393 meals had been bought and 101 individuals who ate 142 meals participated within the research. Publicity befell in a single restaurant over three days.

There have been 49 sufferers; 23 had been laboratory-confirmed infections with multidrug-resistant Salmonella Typhimurium. Extra males than girls had been affected and sufferers ranged in age from 16 to 77 years outdated. Two sufferers had been hospitalized and one had a Salmonella-positive blood tradition however there have been no deaths. Two asymptomatic workers members had been optimistic for Salmonella.

The outbreak pressure was proof against a number of antibiotics, together with fluoroquinolones. 

Imported tomato cubes doubtless supply
A neighborhood environmental well being authority inspected the restaurant in early February 2021. Most meals gadgets had been purchased from one wholesaler. A close-by grocery retailer was sometimes used for purchases. Throughout the go to, there was ongoing renovation. Meals served within the buffet had been cooked within the morning on the day of serving, they usually had been positioned subsequent to one another.

The company suggested the restaurant to accentuate cleansing. It was requested to switch cloth towels within the workers toilet with disposable ones and suggested to freeze meals samples sooner or later.

There have been no samples of the salads containing frozen tomato cubes left for evaluation however tomato cubes from completely different batches had been examined. One in all two samples taken from the native wholesaler in February was optimistic for Salmonella. Nonetheless, scientists couldn’t hint the origin of the contamination.

Salmonella Typhimurium isolates from sufferers and frozen tomato cubes used raw in two completely different salads had been intently associated. These salads had been consumed by three-quarters of sufferers.

Frozen tomato cubes got here to Finland through intra-EU commerce and the wholesaler was the importer. They weren’t bought on to customers. The wholesaler issued a withdrawal and stopped promoting the product till the producer up to date the labeling.

No nationwide suggestions for cooking frozen tomato merchandise exist in Finland. Following the outbreak investigation, the producer determined to advise cooking such merchandise earlier than consumption.

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