Emerging Infectious Disease ISSN: 1080-6059

Rocky Mountain Spotted Fever, Panama

Dora Estripeaut*, María Gabriela Aramburú*, Xavier Sáez-Llorens*, Herbert A. Thompson†, Gregory A. Dasch†, Christopher D. Paddock†, Sherif Zaki†, and Marina E. Eremeeva†

Author affiliations: *Hospital del Niño, Panama City, Panama; †Centers for Disease Control and Prevention, Atlanta, Georgia, USA;

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Figure 1

Histologic and immunohistochemical evaluation of heart tissue. A) Lymphohistiocytic inflammatory cell infiltrates in the myocardium (hematoxylin and eosin stain; original magnification ×25). B) Immunohistochemical detection of spotted fever group rickettsiae (red) in perivascular infiltrates of heart (immunoalkaline phosphatase with naphthol-fast red substrate and hematoxylin counterstain; original magnification ×250.

Figure 1. Histologic and immunohistochemical evaluation of heart tissue. A) Lymphohistiocytic inflammatory cell infiltrates in the myocardium (hematoxylin and eosin stain; original magnification ×25). B) Immunohistochemical detection of spotted fever group rickettsiae (red) in perivascular infiltrates of heart (immunoalkaline phosphatase with naphthol-fast red substrate and hematoxylin counterstain; original magnification ×250.

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