Characterization ofAnaplasma marginaleIsolated from North American Bison
Open Access
- 1 August 2003
- journal article
- Published by American Society for Microbiology in Applied and Environmental Microbiology
- Vol. 69 (8) , 5001-5005
- https://doi.org/10.1128/aem.69.8.5001-5005.2003
Abstract
Anaplasma marginale (Rickettsiales: Anaplasmataceae), a tick-borne pathogen of cattle, is endemic in tropical and subtropical regions of the world. Although serologic tests have identified American bison, Bison bison, as being infected with A. marginale, the present study was undertaken to confirm A. marginale infection and to characterize isolates obtained from naturally infected bison in the United States and Canada. Major surface protein (MSP1a and MSP4) sequences of bison isolates were characterized in comparison with New World cattle isolates. Blood from one U.S. bison was inoculated into a susceptible, splenectomized calf, which developed acute anaplasmosis, demonstrating infectivity of this A. marginale bison isolate for cattle. The results of this study showed that these A. marginale isolates obtained from bison were similar to ones from naturally infected cattle.Keywords
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