Standardized Methods and Quality Control Limits for Agar and Broth Microdilution Susceptibility Testing of Mycoplasma pneumoniae, Mycoplasma hominis, and Ureaplasma urealyticum

Author:

Waites Ken B.1,Duffy Lynn B.1,Bébéar Cécile M.2,Matlow Anne3,Talkington Deborah F.4,Kenny George E.5,Totten Patricia A.5,Bade Donald J.6,Zheng Xiaotian7,Davidson Maureen K.8,Shortridge Virginia D.9,Watts Jeffrey L.10,Brown Steven D.11

Affiliation:

1. Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, USA

2. Unité sous Contrat Mycoplasmal and Chlamydial Infections in Humans, Université Bordeaux, Bordeaux, France

3. The Hospital for Sick Children, Toronto, Ontario, Canada

4. Centers for Disease Control and Prevention, Atlanta, Georgia, USA

5. Department of Medicine, School of Public Health, University of Washington, Seattle, Washington, USA

6. Microbial Research, Inc., Fort Collins, Colorado, USA

7. Children's Memorial Hospital, Chicago, Illinois, USA

8. FDA Center for Veterinary Medicine, Laurel, Maryland, USA

9. bioMérieux, Inc., Hazewood, Missouri, USA

10. Pfizer Animal Health, Kalamazoo, Michigan, USA

11. Clinical Microbiology Institute, Wilsonville, Oregon, USA

Abstract

ABSTRACT An international multilaboratory collaborative study was conducted to develop standard media and consensus methods for the performance and quality control of antimicrobial susceptibility testing of Mycoplasma pneumoniae , Mycoplasma hominis , and Ureaplasma urealyticum using broth microdilution and agar dilution techniques. A reference strain from the American Type Culture Collection was designated for each species, which was to be used for quality control purposes. Repeat testing of replicate samples of each reference strain by participating laboratories utilizing both methods and different lots of media enabled a 3- to 4-dilution MIC range to be established for drugs in several different classes, including tetracyclines, macrolides, ketolides, lincosamides, and fluoroquinolones. This represents the first multilaboratory collaboration to standardize susceptibility testing methods and to designate quality control parameters to ensure accurate and reliable assay results for mycoplasmas and ureaplasmas that infect humans.

Publisher

American Society for Microbiology

Subject

Microbiology (medical)

Reference11 articles.

1. BébéarC . 2010. Mycoplasma, Ureaplasma, p 1–11. In CourvalinP LeclerqR RiceLB (ed), Antibiogram. ASM Press, Washington, DC.

2. Clinical and Laboratory Standards Institute. 2008. Development of in vitro susceptibility testing criteria and quality control parameters. Approved guideline M23-A3. Clinical and Laboratory Standards Institute, Wayne, PA.

3. Clinical and Laboratory Standards Institute. 2011. Methods for antimicrobial susceptibility testing of human mycoplasmas. Approved Guideline M43-A. Clinical and Laboratory Standards Institute, Wayne, PA.

4. Clinical and Laboratory Standards Institute. 2003. Methods for dilution antimicrobial susceptibility tests for bacteria that grow aerobically. Approved standard M07-A6. Clinical and Laboratory Standards Institute, Wayne, PA.

5. Clinical and Laboratory Standards Institute. 2009. Performance standards for antimicrobial susceptibility testing. Nineteenth informational supplement M100-S19. Clinical and Laboratory Standards Institute, Wayne, PA.

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