Patent 11033633 was granted and assigned to Janssen Pharmaceuticals on June, 2021 by the United States Patent and Trademark Office.
Compositions and methods for inducing an immune response against extra-intestinal pathogenic Escherichia coli (ExPEC) are described. In particular, multivalent vaccines containing O-antigen polysaccharide covalently bound to an exotoxin A of Pseudomonas aeruginosa (EPA) carrier protein that can withstand multiple environmental stresses are described.