Abstract: This invention is directed to a suppository-based vaccine delivery system for immunizing against urogenital infectious disease in humans and a method for treating same. More particularly, this invention is directed to a suppository-based vaccine delivery system for the prophylaxis against urogenital infectious diseases, such as urinary tract infections. The suppository-based vaccine delivery system is comprised of a vaccine comprised of inactivated bacteria which originate from cultures of 8 to 14 uropathogenic bacteria strains of the species: Escherichia coli, Klebsiella pnieumoniae, Proteus mirabilis, Proteus morganii, and Streptococcus faecalis; and polyethylene glycol suppository base; wherein the suppository is adapted to be inserted into a bodily orifice of a human so as to allow the suppository to be in contact with tissue of the bodily orifice to facilitate transfer of suppository material therethrough.