Utility of Extended Blood Culture Incubation for Isolation of Haemophilus, Actinobacillus, Cardiobacterium, Eikenella , and Kingella Organisms: a Retrospective Multicenter Evaluation

Author:

Petti Cathy A.1,Bhally Hasan S.23,Weinstein Melvin P.3,Joho Kim3,Wakefield Teresa2,Reller L. Barth4,Carroll Karen C.2

Affiliation:

1. Departments of Medicine and Pathology, University of Utah School of Medicine, Salt Lake City, Utah

2. Johns Hopkins Medical Institutions, Baltimore, Maryland

3. Robert Wood Johnson Medical School, New Brunswick, New Jersey

4. Departments of Medicine and Pathology and Clinical Microbiology Laboratory, Duke University Medical Center, Durham, North Carolina

Abstract

ABSTRACT The incidence of and average time to detection for Haemophilus, Actinobacillus, Cardiobacterium, Eikenella , and Kingella (HACEK) bacteria in blood cultures with standard incubation and the utility of extended incubation of blood culture bottles were reviewed at four tertiary care microbiology laboratories. HACEK organisms were isolated from 35 (<0.005%) of 59,203 positive blood cultures. None of 407 blood cultures with extended incubation grew HACEK or other bacteria. Bacteremia from HACEK bacteria is rare, and extended incubation of blood cultures to recover HACEK bacteria is unnecessary.

Publisher

American Society for Microbiology

Subject

Microbiology (medical)

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