FIELD: biotechnologies.;SUBSTANCE: invention relates to the biotechnology. Proposed bacterial strain Bacillus toyonensis 15, having a wide range of antagonist activity in relation to Escherichia coli, Candida albicans, Staphylococcus aureus, St. epidermidis, Salmonella typhimurium, Shigella sonnei, Pseudomonas aeruginosa, deposited in the Russian National Collection of Industrial Microorganisms under registration number B-13249.;EFFECT: strain can increase effectiveness of antimicrobial biological preparations.;1 cl, 1 dwg, 3 tbl, 3 ex
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