MSFinals-6172
A 60-year-old active builder presents to the emergency department with left-sided scrotal pain and swelling accompanied by fever for the past two days. He had a urinary tract infection 10 days ago, which improved after taking antibiotics. He has a medical history of benign prostatic hyperplasia and is waiting for transurethral resection of the prostate. Despite his age, he is still sexually active with his wife and denies ever having a sexually transmitted disease. What is the probable pathogen responsible for his current condition?