Methicillin-resistant Staphylococcus aureus spa type t002 outbreak in horses and staff at a veterinary teaching hospital after its presumed introduction by a veterinarian

Amir Steinman*, Samira Masarwa, Sharon Tirosh-Levy, Dan Gleser, Gal Kelmer, Amos Adler, Yehuda Carmeli, Mitchell J. Schwaber

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Methicillin-resistant Staphylococcus aureus (MRSA) infection and colonization, involving MRSA strains which differ from common human health care-associated clones, have become serious emerging conditions in equine veterinary hospitals. In 2010, MRSA spa type t535 caused an outbreak involving both horses and personnel in a veterinary teaching hospital in Israel. Since then, surveillance continued, and occasional MRSA isolation occurred. Two years later, MRSA of another spa type, t002, was isolated from a veterinarian and, 3 weeks later, from a horse. The appearance of spa type t002, a common clone in human medicine in Israel, among both personnel and horses, prompted a point-prevalence survey of hospital personnel and hospitalized horses. Fifty-nine staff members (n=16 equine; n=43, other) and 14 horses were screened. Ten of 59 staff members (16.9%) and 7 of 14 horses (50%) were MRSA carriers. Among the staff, 44% of large animal department (LAD) personnel, compared with only 7% of non-LAD personnel, were carriers. Isolates from all horses and from 9 of 10 personnel were found to be of MRSA spa type t002. This clone was later isolated from an infected postoperative wound in a hospitalized horse. Measures were taken to contain transmission between horses and personnel, as was done in the previous outbreak, resulting in reduction of transmission and, finally, cessation of cross-transmission between horses and personnel.

Original languageAmerican English
Pages (from-to)2827-2831
Number of pages5
JournalJournal of Clinical Microbiology
Volume53
Issue number9
DOIs
StatePublished - 1 Sep 2015

Bibliographical note

Publisher Copyright:
© 2015 American Society for Microbiology. All Rights Reserved.

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