title: Uncomplicated Cystitis in an Adult Male Following Influenza B Virus Infection.
abstract: BACKGROUND Influenza B viruses cause seasonal epidemics of respiratory illness, circulating concurrently with influenza A viruses. However, virological and clinical knowledge of influenza B viruses is less well advanced than for influenza A, and in particular, complications associated with influenza B infection are not as commonly reported. Complications of influenza B infection predominantly include neurological and musculoskeletal pathologies, while a review of the literature shows that bacterial infections associated with influenza B viruses often involve Gram-positive organisms, with a smaller subset featuring Gram-negative species. CASE REPORT In this case report we highlight an uncomplicated infection of the urinary tract by Escherichia coli immediately following influenza B infection, in an otherwise healthy adult white male with no prior history of urinary tract infection or structural abnormalities of the renal tract. CONCLUSIONS Bacterial infections complicating influenza B infection may include organisms not commonly associated with the respiratory system, such as Escherichia coli. In addition, bacterial complications of influenza B infection may affect non-respiratory systems, including the genitourinary tract.
authors.affiliation: Department of Microbiology and Immunology, University of Melbourne, at Tthe Peter Doherty Institute of Infection and Immunity, Melbourne, VIC, Australia.
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Allen
authors.affiliation: Department of Microbiology and Immunology, University of Melbourne, at The Peter Doherty Institute of Infection and Immunity, Melbourne, VIC, Australia.
authors.forename: Marios
authors.initials: M
authors.lastname: Koutsakos
authors.affiliation: World Health Organisation (WHO) Collaborating Centre for Reference and Research on Influenza, at The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia.
authors.forename: Aeron C
authors.initials: AC
authors.lastname: Hurt
authors.affiliation: Department of Microbiology and Immunology, University of Melbourne, at The Peter Doherty Institute of Infection and Immunity, Melbourne, VIC, Australia.
authors.forename: Katherine
authors.initials: K
authors.lastname: Kedzierska
mesh_terms: D000328:Adult; D003371:Cough / Q000821:virology; D003556:Cystitis / Q000150:complications / Q000175:diagnosis* / Q000382:microbiology*; D053159:Dysuria / Q000382:microbiology; D004926:Escherichia coli / Q000302:isolation & purification*; D004927:Escherichia coli Infections / Q000150:complications* / Q000175:diagnosis*; D005334:Fever / Q000821:virology; D006417:Hematuria / Q000382:microbiology; D006801:Humans; D009981:Influenza B virus / Q000302:isolation & purification*; D007251:Influenza, Human / Q000150:complications*; D008297:Male