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Updated: May 15, 2026

Cystic Fibrosis Aggregate Biofilm Model to Study Infection-relevant Gene Expression
Published on: April 18, 2025
Cedecea davisae's Role in a Polymicrobial Lung Infection in a Cystic Fibrosis Patient
Thayer G Ismaael1, Eleana M Zamora, Faisal A Khasawneh
1Department of Internal Medicine, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA.
Abstract:
Chronic airway colonization and infection are the hallmark of cystic fibrosis (CF). Staphylococcus aureus, Pseudomonas aeruginosa, and Burkholderia cepacia are well-documented bacterial culprits in this chronic suppurative airway disease. Advanced molecular diagnostics have uncovered a possible role of a larger group of microorganisms in CF. Cedecea is a member of the family Enterobacteriaceae and is an emerging pathogen. We present a case of a polymicrobial healthcare-associated pneumonia in a CF patient caused by Cedecea davisae, among other bacteria.
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