CAD and uterine disorder: In addition to E. coli, other frequently isolated bacteria included CPS, Klebsiella spp., A. pyogenes, Fusobacterium spp., E. areogenes and CNS. These findings are consistent with numerous previous studies worldwide, which have also reported the isolation of these bacteria frequently from the uterus of postpartum cows and their involvement in the pathogenesis of uterine disease [10, 17, 36–40].