Related Experiment Video
Updated: May 12, 2026

Visualization of Streptococcus pneumoniae within Cardiac Microlesions and Subsequent Cardiac Remodeling
Published on: April 7, 2015
Achromobacter piechaudii bloodstream infection in an immunocompetent host
Megan L Krause1, M Rizwan Sohail, Robin Patel
1Division of General Internal Medicine, Mayo Clinic College of Medicine, Rochester, MN, U.S.A.
Background:
Achromobacter piechaudii is a rare cause of clinical disease in humans. Previously, clinical disease has only been documented in immunocompromised patients. We present a case of Achromobacter piechaudii bacteremia in a patient with previous malignancy but no known immunosuppression.
Case Report:
A 67-year-old man with distant history of colon and prostate cancer presented with low grade fevers and malaise. Blood cultures initially identified Alcaligenes xylosoxidans ss. denitrificans. Based on susceptibility testing, antibiotics were narrowed to levofloxacin. After further evaluation, the isolate was identified as Achromobacter piechaudii, an organism rarely previously seen only in immunocompromised patients. The source was felt to be dental infection after transesophageal echocardiogram and CT abdomen/pelvis were unrevealing. He improved with oral levofloxacin and dental extraction.
Conclusions:
This is the first case report of primary Achromobacter piechaudii bloodstream infection in an immunocompetent host and adds to the growing list of clinical syndromes caused by this organism.
Related Concept Videos
Bacterial Phylum Chlamydiae
Atypical Pneumonia
Bacterial Phylum Spirochaetes
Pneumonia I: Introduction
Pneumonia I: Introduction
Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...
Endocarditis II: Clinical Features of Infective Endocarditis
