[Effect of immunization with Escherichia coli J5 on the course of experimental pyelonephritis in rats].

Among the germs of urinary tract infections is a great heterogenicity. Therefore, in search of vaccine candidates of pyelonephritis such germs must be checked the antigens of which to be occurred as much in other pyelonephritis germs as possible. E. coli J5 as a re-mutante of E. coli O111 has a core-antigen which is found in the most enterobacteria. We have examined whether a pyelonephritis in rats was prevented by prophylactic use of a E. coli J5 vaccine and if the course of the disease was influenced by vaccine treatment of animals with pyelonephritis, respectively. Neither a pyelonephritis was prevented nor an existing infection was influenced favourable by the vaccine of E. coli J5.