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Journal of Clinical Microbiology, January 2001, p. 335-338, Vol. 39, No. 1
0095-1137/01/$04.00+0   DOI: 10.1128/JCM.39.1.335-338.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.

Isolation of the Etiologic Agent of Human Granulocytic Ehrlichiosis from the White-Footed Mouse (Peromyscus leucopus)

M. Dana Ravyn,1 Carrie B. Kodner,1 Sarah E. Carter,1 Janet L. Jarnefeld,2 and Russell C. Johnson1,*

Department of Microbiology, University of Minnesota Academic Health Center, Minneapolis, Minnesota 55455,1 and Metropolitan Mosquito Control District, St. Paul, Minnesota 551042

Received 12 April 2000/Returned for modification 5 July 2000/Accepted 18 October 2000

We examined white-footed mice (Peromyscus leucopus) from Minnesota for infection with the etiologic agent of human granulocytic ehrlichiosis (HGE). From April to September 1997, we collected P. leucopus from Washington County, Minnesota, an area enzootic for HGE. Blood was cultivated in HL60 cells for isolation of the HGE agent. Of 59 mice examined, only a single mouse was culture positive for the HGE agent. The 16S ribosomal DNA sequence of the isolate was determined to be identical to that of the HGE agent. The isolate was reactive with monoclonal antibodies to the 44-kDa antigen of the HGE agent and was infectious for laboratory mice.


* Corresponding author. Mailing address: University of Minnesota Academic Health Center, 420 Delaware St., S.E., Minneapolis, MN 55455-0312. Phone: (612) 624-5684. Fax: (612) 626-0623. E-mail: johnson{at}mail.ahc.umn.edu.


Journal of Clinical Microbiology, January 2001, p. 335-338, Vol. 39, No. 1
0095-1137/01/$04.00+0   DOI: 10.1128/JCM.39.1.335-338.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.



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