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Disclaimer: Early release articles are not considered as final versions. Any changes will be reflected in the online version in the month the article is officially released.

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: November 26, 2025
Page reviewed: November 26, 2025
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