Microbiology Which of the following gram-positive organism is most common cause of UTI among sexually active women A Staphylococcus epidermidis B Staphylococcus aureus C Staphylococcus saprophyticus D Enterococcus 💡 Explanation Which of the following gram-positive organism is most common cause of UTI among sexually active women ✓ Correct Answer: C. Staphylococcus saprophyticus