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Infection and Immunity, February 1999, p. 968-971, Vol. 67, No. 2
0019-9567/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.

Production of Enterotoxin by Yersinia bercovieri, a Recently Identified Yersinia enterocolitica-Like Species

Alexander Sulakvelidze,1,* Arnold Kreger,1 Aaron Joseph,1 Roy M. Robins-Browne,2,3 Alessio Fasano,4 Georges Wauters,5 Norma Harnett,6 Louis DeTolla,7,8 and J. Glenn Morris Jr.1

Divisions of Hospital Epidemiology1 and Infectious Diseases,7 Department of Medicine, Division of Gastroenterology and Nutrition, Department of Pediatrics,4 and Department of Pathology,8 University of Maryland School of Medicine, Baltimore, Maryland 21201; Department of Microbiology and Immunology, Royal Children's Hospital,2 and Department of Microbiology, University of Melbourne,3 Parkville, Victoria 3052, Australia; Unité de Microbiologie, Faculté de Médecine, Université Catholique de Louvain, Brussels, Belgium5; and National Centre for Yersinia, Ontario Ministry of Health, Toronto, Ontario, Canada M5W 1R56

Received 20 August 1998/Returned for modification 9 October 1998/Accepted 9 November 1998

Yersinia bercovieri, a recently identified Y. enterocolitica-like species, produces a heat-stable enterotoxin (designated YbST) which has biologic activity in infant mice and increases short circuit current in Ussing chambers. Although YbST has some properties in common with the heat-stable enterotoxins of Y. enterocolitica (YST I and YST II), it appears to be a novel toxin because (i) it was not neutralized by anti-YST I antiserum, (ii) YbST-neutralizing antiserum did not neutralize YST I, and (iii) Y. bercovieri strains did not hybridize with genetic probes for yst I, yst II, and other known enterotoxins.

* Corresponding author. Mailing address: Division of Hospital Epidemiology, University of Maryland School of Medicine, MSTF Bldg., Room 9-34, 10 S. Pine St., Baltimore, MD 21201. Phone: (410) 706-4587. Fax: (410) 706-4581. E-mail: asulakve{at}umppa1.ab.umd.edu.

Infection and Immunity, February 1999, p. 968-971, Vol. 67, No. 2
0019-9567/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.


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