Compositions and methods are described for vaccinating againstE. coliintra-abdominal infections. The compositions comprise a FimH polypeptide, one or more conjugates comprisingE. coliO-antigens polysaccharide covalently coupled to a carrier protein, and an adjuvant.描述了用於針對大腸桿菌腹內感染進行疫苗接種之組成物和方法。該等組成物包含FimH多肽、一種或多種包含與載體蛋白共價偶合的大腸桿菌O-抗原多糖的軛合物、和佐劑。