Selecting a Miniaturized System for Identification of Enterobacteriaceae.

Area of Science:

• Clinical microbiology
• Bacterial identification

Background:

• Enterobacteriaceae identification relies on commercial diagnostic kits.
• Commonly used kits include API, Enteric-Tek, Enterotube II, Micro-ID, Minitek, and Spectrum-10.

Purpose of the Study:

• To evaluate factors beyond accuracy for selecting Enterobacteriaceae diagnostic kits.
• To compare the advantages, disadvantages, and costs of various commercial identification systems.

Main Methods:

• Surveying 23 experienced microbiologists on kit performance and usability.
• Determining the cost per isolate, including manuals, reagents, and incidental expenses.
• Analyzing factors such as shelf-life, versatility, and time requirements.

Main Results:

• Accuracy among the evaluated systems did not significantly differ and was within acceptable limits.
• Microbiologists' qualitative feedback on advantages and disadvantages was compiled.
• Comparative data on price, shelf-life, versatility, inoculation/incubation/post-incubation times, reaction interpretation, and safety were generated.

Conclusions:

• Bacteriologists should prioritize factors other than accuracy when choosing Enterobacteriaceae identification kits.
• The study provides comprehensive comparative data to aid informed decision-making for laboratory personnel.