The present invention relates to Podoviridae bacteriophage Pse-AEP-4 (accession number: KCTC 13166BP) isolated from nature, the Podoviridae bacteriophage Pse-AEP-4 having the capability to specifically kill Pseudomonas aeruginosa and having a genome represented by SEQ ID NO: 1, and a method for preventing or treating diseases induced by Pseudomonas aeruginosa by using a composition containing the Podoviridae bacteriophage Pse-AEP-4 as an active ingredient.

The present invention relates to bacteriophage therapy. More particularly, the present invention relates to novel bacteriophages having a high specificity against Escherichia coli strains, their manufacture, components thereof, compositions comprising the same and the uses thereof in phage therapy.

The present invention relates to a Podoviridae bacteriophage Bor-BRP-1 (accession no. KCTC 12705BP) isolated from nature, which has an ability to specifically kill Bordetella bronchiseptica bacteria and has a genome represented by SEQ ID NO: 1; and a method for preventing and treating infection with Bordetella bronchiseptica bacteria using a composition comprising the same as an active ingredient.

The present invention relates to GRCS bacteriophages, as well as to methods and compositions for the treatment of prosthetic joint infection. Particularly, the present invention provides bacteriophages specific against Staphylococcus aureus from prosthetic joint infections.

A method of recovering viable phage from, for example, a crude phage preparation such as a lysate resulting from amplification of phage in bacterial cell culture is disclosed. The method may be universal; that is, applicable to the purification of a broad range of phage species and strains. The phage product resulting from the method may have an acceptably low endotoxin titer (e.g. less than 500 EU/ml) and sufficiently high phage titer (e.g. >1?10.sup.9 PFU/ml) for use in therapeutic applications.

The invention relates to the field of phage therapy. It particularly relates to providing phages, phage-based compositions and methods for treating or preventing bacterial infections, particularly C. perfringens, in animals, including humans, aquaculture and livestock. The invention also relates to uses of the compositions as a feedstuff and as a biological decontaminator in feed and food products for human and animal consumption.

Disclosed are compositions, devices, kits, and methods for treatment of Enterobacteriaceae infection. Aspects of the present disclosure are directed to bacteriophage compositions comprising one or more of ES17, ES19, HP3, HP3.1, and HP3.2. Certain aspects of the disclosure are directed to compositions comprising (a) bacteriophage ES17 or bacteriophage ES19, (b) bacteriophage HP3, and (c) bacteriophage HP3.1. Also disclosed are compositions comprising bacteriophage HP 3.2. Further disclosed are devices and kits comprising such compositions and methods for use of such compositions in treatment and prevention of pathogenic E. coli infection.

This disclosure describes non-naturally occurring protein scaffolds and methods of making and using the protein scaffolds. In one aspect, therefore, this disclosure describes a non-naturally occurring protein scaffold that includes a plurality of structural domains and a plurality of loop regions that include an amino acid sequence that varies from a naturally-occurring loop region by at least one amino acid deletion, substitution, or addition. Generally, the structural domain or domains can include at least one structure and/or at least one a helix.

The present invention relates to a bacteriophage strain capable of producing a lytic infection in the Escherichia coli ST131-025b:H4 clone. The burden of STl31-025b:H4 Escherichia coli clonal complex in human community and hospital-acquired infections is increasing worldwide, going along with a worrying and growing resistance to betalactams and fluoroquinolones. Bacteriophage LM33_P1 infects exclusively (100% specificity) 025b E. coli strains with 70% coverage on the two major antibiotic resistant pandemic clonal complexes STI31-025b:H4 and ST69-025b. The inventors evaluated the in vivo activity of bacteriophage LM33_P1 using three different extraintestinal virulence murine models and showed that it infects bacteria in several organs. In particular, the invention relates to a bacteriophage capable of producing a lytic infection in the Escherichia coli ST131-025b:H4 clone comprising a polypeptide corresponding to the bacteriophage tail fiber protein and responsible for the attachment of the bacteriophage to the Escherichia coli ST131-025b:H4 clone.

The present invention relates to methods and kits for the rapid detection of the Escherichia coli O25b-ST131 clone. The inventors have isolated a podoviridae bacteriophage (LM33_P1) infecting the E. coli strain LM33 isolated from ventilator associated pneumonia and which belongs to clone STI3I-025b. By testing different strains of E coli belonging to 129 others various distinct serotypes (including twelve O25a) the inventors found that bacteriophage LM33_P1 is able to infect exclusively O25b strains (none of non-O25b strains could be infected by LM33_P1). The inventors have determined that the specificity displayed by bacteriophage LM33_P1 to infect only 025b serotype strains is based on a very specific polypeptide (Gp17) used by LM33_P1 to attach the bacterial cell via LPS molecule. In particular, the present invention relates to a polypeptide comprising an amino acid sequence having at least 80% of identity with the amino acid sequence set forth in SEQ ID NO:1.