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Volume 31, Number 11—November 2025

Research

Isolation and Characterization of Rickettsia finnyi, Novel Pathogenic Spotted Fever Group Rickettsia in Dogs, United States

Praveen K. Korla1, Michael G. Karounos1, Sarah B. Clarke, Cynthia Robveille, James M. Wilson, Edward B. Breitschwerdt, Adam J. Birkenheuer, and Barbara A. QurolloComments to Author 
Author affiliation: North Carolina State University College of Veterinary Medicine, Raleigh, North Carolina, USA

Main Article

Figure 2

Microscopic images from study of isolation and characterization of Rickettsia finnyi, novel pathogenic spotted fever group Rickettsia in dogs, United States. Images depict Rickettsia finnyi sp. nov. strain 2024-CO-Wats–infected 030D canine mononuclear cells (A) and Vero E6 primate epithelial cells (B) stained with Giménez. Original magnification ×100. Image is white balance adjusted.

Figure 2. Microscopic images from study of isolation and characterization of Rickettsia finnyi, novel pathogenic spotted fever group Rickettsia in dogs, United States. Images depict Rickettsia finnyi sp. nov. strain 2024-CO-Wats–infected 030D canine mononuclear cells (A) and Vero E6 primate epithelial cells (B) stained with Giménez. Original magnification ×100. Image is white balance adjusted.

Main Article

1These authors contributed equally to this article.

Page created: September 24, 2025
Page updated: December 10, 2025
Page reviewed: December 10, 2025
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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