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JAC Advance Access published online on January 28, 2005
Journal of Antimicrobial Chemotherapy, doi:10.1093/jac/dki001
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JAC © The British Society for Antimicrobial Chemotherapy 2005; all rights reserved
Received October 22, 2004
Revised November 29, 2004
Accepted December 2, 2004

Brief report

Characterization of major clones of antibiotic-resistant Streptococcus pneumoniae in New Zealand by multilocus sequence typing

David C. Bean 1* and John D. Klena 1 {dagger}

1 Plant and Microbial Science Department, University of Canterbury, Christchurch, New Zealand

* To whom correspondence should be addressed.
David C. Bean, E-mail: d.c.bean{at}qmul.ac.uk


  Abstract

Objectives: To determine the relationship between New Zealand isolates of antibiotic-resistant Streptococcus pneumoniae and internationally widespread resistant clones.

Methods: Fifty-nine isolates representing both invasive and non-invasive pneumococci from multiple locations, serotypes and years were analysed by multilocus sequence typing.

Results: Major international clones, including Spain23F-1, France9V-3 and Taiwan19F-14, were found to be present in New Zealand. A one-allele variant of the Taiwan19F-14 clone (aroE 15->4, ST 271) was particularly prominent.

Conclusions: Antibiotic-resistant pneumococci have not evolved de novo in New Zealand, but were introduced to the country during the early 1990s.

Keywords: S. pneumoniae; PMEN; MLST.

{dagger} Present address: US Naval Medical Research Unit-3, Cairo, Egypt.


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