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Haemophilus influenzae has rarely been implicated as the causative agent of urinary tract infections in adults. The isolation of H influenzae from a urine sample was first reported in 1898 when Kretz¹ recovered influenzae bacillus from the urine sample of a 36-year-old man with hematuria and polyuria. Since then, only 20 cases have been reported that implicate H influenzae as the cause of adult urinary tract infections.^2-6 We report an additional case of H influenzae pyelonephritis in a 90-year-old man and discuss the possible underestimation of the true incidence of H influenzae in urinary tract infections.

A 90-year-old man was seen in the emergency department with complaints of fever, dysuria, and left-sided flank pain of 2 days' duration. His medical history was notable only for symptomatic prostatic enlargement, for which he was being treated with phenoxybenzaline. Positive findings on physical examination included a temperature of 38.3°C and suprapubic and left-sided . . . [Full Text of this Article]

James M. Reichman, MD
Jerusalem, Israel