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Studies were carried out in the summer seasons of 1995-1999 (from June to September) on the quantitative and qualitative composition of Enterobacleriaceae bacteria (including Escherichia coli and Salmonella sp.), and potentially pathogenic bacteria Aeromonas hydrophila, Pseudomonas aeruginosa and Staphylococcus sp. in the water of 8 bathing sites of the Lake Wigry. Aeromonas hydrophila occurred in...
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