Shiga toxin producing E coli in raw milk products in Norway

The Norwegian Food Safety Authority has detected Shiga toxin producing E. coli (STEC) in four unpasteurized milk products.

Mattilsynet said 82 unpasteurized milk products were examined and STEC was isolated from three products from Norwegian companies and a French cheese. Stx genes were also detected in 20 samples.

E. coli O-, stx2a was found in a Norwegian-produced soft red cheese of cow’s milk and rømme (a type of blue cheese) and E. coli O26, Stx1 and eae was in fresh cheese from goat milk. E. coli O113, stx2d was detected in French chèvre.

Joe Whitworth of Food Quality News reports Mattilsynet took 714 samples of pasteurized and unpasteurized dairy products – mainly cheeses – as part of a monitoring program from 2010 to 2016 – including 184 samples last year.

Samples in 2016 consisted of 102 produced from pasteurized milk and 82 of unpasteurized milk from stores, importers and manufacturers.

These products consisted of cow’s milk (139), goat (33), sheep (11) and a mixture of these (1).

The monitoring program was done to acquire knowledge on hygiene of dairy products on the Norwegian market.

  • Pascale Baudonnel

    Rømme is not blue cheese, but sour cream. I now very well this cases. The authority dont take the last analysis to confirm STEC, but use these unfinished results to discriminate raw milk, as usual…