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Journal of Clinical Microbiology, July 1998, p. 2035-2037, Vol. 36, No. 7
0095-1137/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.

Identification of a Granulocytic Ehrlichia Strain Isolated from a Horse in Switzerland and Comparison with Other Rickettsiae of the Ehrlichia phagocytophila Genogroup

Nicola Pusterla,1,* Jon B. Huder,2 Karsten Feige,1 and Hans Lutz1

Department of Veterinary Internal Medicine, University of Zurich, CH-8057 Zurich,1 and Swiss National Center for Retroviruses, University of Zurich, CH-8044 Zurich,2 Switzerland

Received 15 December 1997/Returned for modification 30 March 1998/Accepted 15 April 1998

This case report describes a 12-year-old Arabian mare with granulocytic ehrlichiosis. Clinical signs included fever, apathy, anorexia, icterus, limb edema, and reluctance to move. Examination of buffy coat smears revealed Ehrlichia organisms in neutrophils and eosinophils. A band of 1,428 bp was amplified from DNA of leukocytes via nested PCR and was identified as part of the Ehrlichia 16S rRNA gene. It differed from the gene sequences of Ehrlichia phagocytophila and E. equi at two and three positions, respectively. Interestingly, the nucleotide sequence of the 16S rRNA was 100% identical to that of the agent of human granulocytic ehrlichiosis.

* Corresponding author. Mailing address: Department of Veterinary Internal Medicine, University of Zurich, Winterthurerstraße 260, CH-8057 Zurich, Switzerland. Phone: (0041) 1 635 83 51. Fax: (0041) 1 635 89 06. E-mail: pusterla{at}vetmed.unizh.ch.

Journal of Clinical Microbiology, July 1998, p. 2035-2037, Vol. 36, No. 7
0095-1137/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.


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