The antimicrobial composition comprising: a) Bacteriophage strains, specific to Shigella flexneri. DSM 32619 and DSM 32620, which are deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), b) Bacteriophage strains, specific to Shigella sonnei. DSM 32621 and DSM 32622, which are deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), c) Bacteriophage strain, specific to Salmonella choleraesuis. DSM 32625, which is deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), d) Bacteriophage strain, specific to Salmonella newport DSM 32624, which is deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), e) Bacteriophage strain, specific to Salmonella paratyphi A: DSM 32623, which is deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), f) Bacteriophage strain, specific to Salmonella typhimunum. DSM 32626, which is deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), g) Bacteriophage strain, specific to Salmonella paratyphi B: DSM 32627, which is deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), h) Bacteriophage strain, specific to Salmonella heidelberg DSM 32628, which is deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), i) Bacteriophage strains, specific to Escherichia coll. DSM 32612, DSM 32611 and DSM 32610, which are deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), j) Bacteriophage strains, specific to Proteus vulgaris. DSM 32613, DSM 32614 and DSM 32615, which are deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), k) Bacteriophage strains, specific to Staphylococcus aureus. DSM 32631, DSM 32629 and DSM 32630, which are deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), l) Bacteriophage strains, specific to Pseudomonas aeruginosa:. DSM 32616, DSM 32618 and DSM 32617, which are deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), m) Bacteriophage strains, specific to Enterococcus. DSM 32632 and DSM 32633, which are deposited in German Collection of Microorganisms and Cell Cultures (DSMZ) and optionally a pharmaceutically acceptable excipient. a) Bacteriophage strains, specific to Shigella flexneri. DSM 32619 and DSM 32620, which are deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), b) Bacteriophage strains, specific to Shigella sonnei. DSM 32621 and DSM 32622, which are deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), c) Bacteriophage strain, specific to Salmonella choleraesuis. DSM 32625, which is deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), d) Bacteriophage strain, specific to Salmonella newport DSM 32624, which is deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), e) Bacteriophage strain, specific to Salmonella paratyphi A: DSM 32623, which is deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), f) Bacteriophage strain, specific to Salmonella typhimunum. DSM 32626, which is deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), g) Bacteriophage strain, specific to Salmonella paratyphi B: DSM 32627, which is deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), h) Bacteriophage strain, specific to Salmonella heidelberg DSM 32628, which is deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), i) Bacteriophage strains, specific to Escherichia coll. DSM 32612, DSM 32611 and DSM 32610, which are deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), j) Bacteriophage strains, specific to Proteus vulgaris. DSM 32613, DSM 32614 and DSM 32615, which are deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), k) Bacteriophage strains, specific to Staphylococcus aureus. DSM 32631, DSM 32629 and DSM 32630, which are deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), l) Bacteriophage strains, specific to Pseudomonas aeruginosa:. DSM 32616, DSM 32618 and DSM 32617, which are deposited in German Collection of Microorganisms and Cell Cultures (DSMZ), m) Bacteriophage strains, specific to Enterococcus. DSM 32632 and DSM 32633, which are deposited in German Collection of Microorganisms and Cell Cultures (DSMZ)