During her lifetime, an adult woman has a 50% chance of developing a urinary tract infection—one of the most common types of infections (1). Most urinary tract infections are caused by strains of the bacterium Escherichia coli, and, for the most part, are easily treated with antibiotics. However, many of these infections become chronic or recurrent because of increasing antibiotic resistance an...

Dr. Salen is a recipient of a Clinical Investigatorship Award from the Veterans Administration, Washington, D. C. His present address is Veterans Administration Hospital, East Orange, N. J. 07019. Received for publication 23 January 1973 and in revised form 27 June 1973. tanol outputs. In contrast, the administration of clofibrate lowered plasma cholesterol levels 50% and presumably reduced syn...