Abstract
To the Editor: The close correlation between the presence of antibody-coated bacteria in the urine sediment and upper-urinary-tract infection has been reported.1 Of seven patients with lower-urinary-tract infection, only two were men, and only one was considered to have prostatitis. This patient's urine contained no antibody-coated bacteria (Case 20). Nevertheless, it seemed possible for these bacteria to result from prostatic infection, since plasma-cell infiltration is seen in the chronically infected prostate, serving as a potential source of antibody. In most cases the bacterial burden of prostatic tissue and secretions are too low (≤1O4 bacteria per milliliter2) to be detected . . .