Urinary tract infection caused by Haemophilus parainfluenzae

A case of Haemophilus parainfluenzae urinary tract infection is reported, with clinical history and bacteriologic data. Other reports of this organism causing urinary tract infection could not be found. The importance of correlating data from clean-catch urine microscopic analysis, Gram stain, and culture is emphasized, together with the possible modes of spread in a compromised host.