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Antibiotic resistance among clinical Ureaplasma isolates recovered from neonates in England and Wales between 2007 and 2013

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journal contribution
posted on 28.03.2022, 11:50 authored by Mike BeetonMike Beeton, Victoria J. Chalker, Lucy C. Jones, Nicola C. Maxwell, O. Brad Spiller
Ureaplasma spp. are associated with numerous clinical sequelae with treatment options being limited due to patient and pathogen factors. This report examines the prevalence and mechanisms of antibiotic resistance among clinical strains isolated from 95 neonates, 32 women attending a sexual health clinic, and 3 patients under investigation for immunological disorders, between 2007 and 2013 in England and Wales. MICs were determined by using broth microdilution assays, and a subset of isolates were compared using the broth microdilution method and the Mycoplasma IST2 assay. The underlying molecular mechanisms for resistance were determined for all resistant isolates. Three isolates carried the tet(M) tetracycline resistance gene (2.3%; confidence interval [CI], 0.49 to 6.86%); two isolates were ciprofloxacin resistant (1.5%; CI, 0.07 to 5.79%) but sensitive to levofloxacin and moxifloxacin, while no resistance was seen to any macrolides tested. The MIC values for chloramphenicol were universally low (2 μg/ml), while inherently high-level MIC values for gentamicin were seen (44 to 66 μg/ml). The Mycoplasma IST2 assay identified a number of false positives for ciprofloxacin resistance, as the method does not conform to international testing guidelines. While antibiotic resistance among Ureaplasma isolates remains low, continued surveillance is essential to monitor trends and threats from importation of resistant clones.

History

Published in

Antimicrobial Agents and Chemotherapy

Publisher

American Society for Microbiology

Version

AM (Accepted Manuscript)

Citation

Beeton, M.L., Chalker, V.J., Jones, L.C., Maxwell, N.C. & Spiller, O.B. (2016) 'Antibiotic resistance among clinical Ureaplasma isolates recovered from neonates in England and Wales between 2007 and 2013', Antimicrobial Agents and Chemotherapy 60 (1), pp.52–56

Print ISSN

0066-4804

Electronic ISSN

1098-6596

Cardiff Met Affiliation

Cardiff School of Sport and Health Sciences

Cardiff Met Authors

Mike Beeton Michael Beeton

Cardiff Met Research Centre/Group

  • Microbiology & Infection

Copyright Holder

© The Publisher

Language

en

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