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J Med Microbiol 56 (2007), 1107-1109; DOI: 10.1099/jmm.0.47283-0
© 2007 Society for General Microbiology
ISSN 1473-5644

Investigation of meticillin-resistant Staphylococcus aureus in pigs used for research

Darvi Michell Bufete Sergio1, Tse Hsien Koh2, Li-Yang Hsu3, Bryan Emmett Ogden1,4, Angela L. H. Goh1 and Pierce K. H. Chow1

1 Department of Experimental Surgery, Singapore General Hospital, Singapore 169608, Singapore

2 Department of Pathology, Singapore General Hospital, Singapore 169608, Singapore

3 Department of Internal Medicine, Singapore General Hospital, Singapore 169608, Singapore

4 Maccine Pte Ltd, Singapore Science Park II, Singapore 117684, Singapore

Correspondence
Pierce K. H. Chow
gsupc{at}singnet.com.sg

Received 12 March 2007
Accepted 26 April 2007

Meticillin-resistant Staphylococcus aureus (MRSA) was unexpectedly isolated from a pig used for streptozotocin-induced diabetes research. To investigate the possible source of the MRSA isolate, nasal swabs were obtained from the animal herd, and from animal holding rooms, and veterinary and research staff involved in the handling of the animals. Overall, four MRSA isolates were cultured from three pigs and from a clinician/scientist. Two were ST22-MRSA-IV, a human strain type associated with epidemic spread. The other two were ST398-MRSA-V, a strain type associated with pigs. Thus, care should be taken to prevent cross-transmission of MRSA.

Abbreviations: MLST, multilocus sequence typing; MLVA, multilocus variable number tandem repeat analysis; MRSA, meticillin-resistant Staphylococcus aureus; MSSA, meticillin-sensitive Staphylococcus aureus.






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