Bordetella bronchiseptica isolation in chronic respiratory conditions: infection or colonization?

Authors

  • Enrica Intini San Filippo Neri Hospital, Respiratory Unit, Roma, Itália https://orcid.org/0000-0003-2981-270X
  • Bernardetta Palazzotti San Filippo Neri Hospital, Division of Microbiologic Unit , Roma, Itália
  • Marcello Meledandri San Filippo Neri Hospital, Division of Microbiologic Unit , Roma, Itália https://orcid.org/0000-0003-4639-4335
  • Luca Triolo San Filippo Neri Hospital, Respiratory Unit, Roma, Itália

DOI:

https://doi.org/10.66004/2764-734X.e20260984

Keywords:

Bordetella bronchiseptica, Bronchiectasis, Bronchoscopy, Drug Resistance, Microbial, Case Report

Abstract

We report two cases of Bordetella bronchiseptica isolation from bronchoalveolar lavage fluid in patients with pre-existing lung conditions. Case 1 describes a 75-year-old male with COPD, organizing pneumonia on high-dose steroids, and presenting hemoptysis with acute pulmonary consolidations on CT, who was successfully treated with targeted antibiotics. Case 2 describes a 71-year-old female with long-standing bronchiectasis and prior non-tuberculous mycobacterial (NTM) disease presenting with a persistent dry cough and new tree-in-bud opacities, managed conservatively without antimicrobial therapy. Specific interpretive breakpoints for clinical decision-making concerning the isolation of B. bronchiseptica are lacking; therefore, management remains challenging.

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Published

2026-10-09

How to Cite

1.
Intini E, Palazzotti B, Meledandri M, Triolo L. <i>Bordetella bronchiseptica<i> isolation in chronic respiratory conditions: infection or colonization?. Infect in Evid [Internet]. 2026 Oct. 9 [cited 2026 Oct. 9];5:e20260984. Available from: https://infectionsinevidence.org/index.php/journal/article/view/e20260984

Issue

Vol. 5 (2026)

Section

Case Reports

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