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[Presence of botulinum-producing clostridia in the soils of Entre Ríos].

Botulism, well known for centuries, continues to preoccupy the Public Health authorities, food and agricultural industries. In its oldest form it results from ingestion of food containing botulinum toxin. To correctly evaluate the incidence of botulism it is fundamental to know the distribution of botulinum toxin-producing clostridia (Clostridium botulinum, C. baratii, C. butyricum and C. argentinense) in nature, specially in the soil, its main reservoir. In our country, this study has been carried out in a partial way. With the aim to contribute to such knowledge, 240 soil samples from Entre Ríos province were examined for C. botulinum and 35 (14.6%) samples resulted positive.