The present invention is a new bacteriophage BC13 having a specific killing ability against Bacillus cereus bacteria, a composition for antibiotics containing the bacteriophage, a composition for adding feed, a feed, a disinfectant or detergent, and a step of administering the bacteriophage to an individual It relates to a method for preventing or treating infectious diseases caused by Serus bacteria. The method for preventing or treating infectious diseases caused by Bacillus cereus bacteria using the bacteriophage BC13 of the present invention has a very high specificity against Bacillus cereus bacteria compared to chemicals such as conventional antibiotics, and the bacteriophage BC13 is Bacillus cereus bacteria. It has the advantage of being excellent in lytic activity by infection and strong in physicochemical stimulation. In addition, since the bacteriophage BC13 of the present invention does not infect other hosts other than bacteria such as humans, animals, plants, etc., it has the advantage of solving the problem of antibiotic-resistant bacteria due to misuse of antibiotics, the problem of residual antibiotics in food, and a wide range of host problems. have. Therefore, the bacteriophage BC13 of the present invention can be used in various fields in the field of prevention or treatment of infectious diseases caused by Bacillus cereus, antibiotic composition, composition for adding feed, feed, disinfectant, or detergent.
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