The present invention relates to proteins and nucleic acids derived from Klebsiella pneumoniae as well as therapeutic and diagnostic uses of the proteins and nucleic acids.

Technologies for the prevention and/or treatment of nosocomial infections.

A SD-1 strain of Klebsiella pneumoniae from mink and its application are disclosed, wherein the collection number of the Klebsiella pneumoniae is CGMCC NO: 17901. The Klebsiella pneumoniae SD-1 strain can be used for preparing a vaccine. The preferred form of the vaccine is an inactivated vaccine. The SD-1 strain of Klebsiella pneumoniae was screened from minks that died after vaccination. Compared with the current Klebsiella pneumoniae, the strain has mutated and is a new type of pathogenic strain. Vaccine prepared from the SD-1 strain provides better immune protection for minks.

For the first time individual (free from impurities of penta- and hexa-acetylated derivatives) di-, tri- and tetra-acetylated S-LPS of endotoxic bacteria and combinations thereof were obtained and their immunobiological, physical-chemical and chemical-pharmaceutical properties were studied. For the first time the principal possibility of their clinical application was directly demonstrated as vaccines and pharmaceutical compositions containing the modified S-LPS individual as monocomponent or combinations thereof as two and three component active substance, respectively. The modified S-LPS and combinations thereof have high safety profile and provide low pyrogenicity and high immunogenicity. Developed on their basis vaccines and pharmaceutical compositions demonstrate anti-shock activity, high efficiency and specificity, broad-spectrum action and also good chemical-pharmaceutical parameters.

To identify a microorganism causing the development of primary sclerosing cholangitis associated with ulcerative colitis. A Klebsiella pneumoniae strain inducing inflammation in the liver.

The present invention relates to proteins and nucleic acids derived from Klebsiella pneumoniae as well as therapeutic and diagnostic uses of the proteins and nucleic acids.

This disclosure provides a new vaccine composition and methods for its use. The composition contains an effective amount of each of: an aluminum hydroxide, a mono-phosphoryl lipid (MPL), and a whole glucan particles (WGP) but no an antigen that raises an immune response against a bacterial or fungal infection.

Disclosed are compounds, compositions, and methods relating to epitope-targeted immunostimulants (EPIs), which comprise a synthetic peptide ligand and an antibody-recruiting moiety. The peptide ligand binds an epitope on a target and the antibody-recruiting moiety recruits antibodies to the target when the EPI is bound to the epitope on the target. Also disclosed are compositions comprising any of the disclosed EPIs. Also disclosed are methods of stimulating an immune reaction to a microorganism or other pathogen in a subject where an EPI is administered to the subject. Also disclosed are methods of identifying the peptide ligand by using multi-omic analysis.

The present invention provides compositions and methods of inducing an immune response in a subject in need thereof, comprising administering to the subject an immunologically-effective amount of a live Salmonella Typhi vector comprising a heterologous antigen from a pathogen, wherein the heterologous antigen comprises an outer membrane protein, an antigenic fragment thereof or a variant thereof, wherein the antigen is delivered to a mucosal tissue of the subject by an outer membrane vesicle.

Provided herein are isolated proteins isolatable from a Klebsiella spp. Also provided are compositions that include one or more of the proteins, and methods for making and methods for using the proteins.