<prompt> Most common cause of UTI in a neonate isE.coliS. aureusEnterococcusAnerobes  <response>: Causative agents of UTI:Uncomplicated UTIComplicated UTIE.coli KlebsiellaProteus speciesEnterobacterStaphylococcus saprophyticusEnterococci Chlamydia , Neisseria Ureaplasma, Mycoplasma . Adenovirus E.coli KlebsiellaProteus speciesSerratia marcescensPseudomonas Enterococci Staphylococci Ref:Harrisons infectious disease 2nd edition, p296 