“…Interestingly, there was a considerable amount of variation in the definitions used for both colonization and systemic infection, as well as in the observed colonization rates among these studies (Sims et al [5] 44%, Ozturk et al [6] 24.7%, Ganesan et al [7] 35.5%, Wainer et al [9] 35.2% [Howell et al (8) did not study colonization rates]). These studies were also conducted at different times periods and in different countries (United States, Turkey, United Kingdom, Australia and South Africa).…”