Background
1. Bacterial infections of urinary tract are a very common reason to seek health services
2. Common in young females and uncommon in males under age 50
3. Common causative organisms
a. Escherichia coli (gram-negative enteral bacteria) causes most community acquired infections
b. Staphylococcus saprophyticus, gram-positive organism causes 10 – 15%
c. Catheter-associated UTI’s caused by gram-negative bacteria: Proteus, Klebsiella, Seratia, Pseudomonas