Molecular characterization of staphylococcus aureus from outpatients in the Caribbean reveals the presence of pandemic clones

A. C. Uhlemann, C. Dumortier, C. Hafer, B. S. Taylor, E. J. Sánchez, C. Rodriguez-Taveras, P. Leon, R. Rojas, C. Olive, F. D. Lowy

Research output: Contribution to journalArticlepeer-review

44 Scopus citations


Staphylococcus aureus infections continue to pose a global public health problem. Frequently, this epidemic is driven by the successful spread of single S. aureus clones within a geographic region, but international travel has been recognized as a potential risk factor for S. aureus infections. To study the molecular epidemiology of S. aureus infections in the Caribbean, a major international tourist destination, we collected methicillin-susceptible S. aureus (MSSA) and methicillin-resistant S. aureus (MRSA) isolates from community-onset infections in the Dominican Republic (n=112) and Martinique (n=143). Isolates were characterized by a combination of pulsed-field gel electro-phoresis (PFGE), spa typing, and multilocus sequence typing (MLST) typing. In Martinique, MRSA infections (n=56) were mainly caused by t304-ST8 strains (n=44), whereas MSSA isolates were derived from genetically diverse backgrounds. Among MRSA strains (n=22) from the Dominican Republic, ST5, ST30, and ST72 predominated, while ST30 t665-PVL+ (30/90) accounted for a substantial number of MSSA infections. Despite epidemiological differences in sample collections from both countries, a considerable number of MSSA infections (∼10%) were caused by ST5 and ST398 isolates at each site. Further phylogenetic analysis suggests the presence of lineages shared by the two countries, followed by recent genetic diversification unique to each site. Our findings also imply the frequent import and exchange of international S. aureus strains in the Caribbean.

Original languageEnglish (US)
Pages (from-to)505-511
Number of pages7
JournalEuropean Journal of Clinical Microbiology and Infectious Diseases
Issue number4
StatePublished - Apr 2012

ASJC Scopus subject areas

  • Microbiology (medical)
  • Infectious Diseases


Dive into the research topics of 'Molecular characterization of staphylococcus aureus from outpatients in the Caribbean reveals the presence of pandemic clones'. Together they form a unique fingerprint.

Cite this