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From among 108 soil samples tested, originated from the Baltic Sea and the Vistula Firth coastal line area, in 33 cases presence of Clostridium botulinum type E, and in 1 case of Clostridium botulinum type A, was established. The highest percentage of positive results was a scertained in the Gdańsk Bay - 38%. Samples of the Vistula Firth origin were free of this bacteria.
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