Scientists came on the heels of deadly bacteria

The search for the source of contamination thousand Europeans intestinal infection £ vib led to the north of Germany.

It was found that seventeen people became ill after eat in a restaurant in Luebeck.

In addition, the experts came under suspicion Festival, held in Hamburg in mid-May.

It was attended by about one and a half million people.

If sellers can establish contaminated products, it will track all the way along the supply chain bacteria.

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