Abstract
IT has become abundantly clear, in the past few years, that asymptomatic infections of the urinary tract can be recognized by the proper use of quantitative bacteriologic methods, and that asymptomatic bacteriuria not only may accompany pyelonephritis1 2 3 4 but also may lead to the development of symptomatic pyelonephritis.5 Studies of the incidence and significance of bacteriuria have been greatly aided by the use of voided urine for bacteriologic study, and the data so obtained have suggested that asymptomatic bacteriuria is a common infection, with potential consequences that require careful study.Many attempts to define the incidence of bacteriuria in various clinical . . .