Clinical Microbiology Procedures Handbook

Section 4: Anaerobic Bacteriology

4.15 Anaerobic Cocci

Last Updated:2023
Preanalytical Considerations

The anaerobic cocci are a prominent part of the normal human microbiota of the skin, gastrointestinal tract, oral cavity, upper respiratory tract, and female genital tract. Gram‐positive anaerobic cocci (GPAC)…

Analytical Considerations

Identification of anaerobic cocci relies on establishing the presence of either GPAC or GNAC based on the results of aerotolerance testing, a primary colony Gram stain,…

Postanalytical Considerations

Send a final report once the identification via MALDI‐TOF MS or other method is available and has been correlated with the Gram stain and rapid testing results, as appropriate. Notify the clinician if a definitive identification cannot…


Section Editor: Audrey N. Schuetz

Editors in Chief: Amy L. Leber and Carey-Ann D. Burnham

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