Emerging Infectious Disease ISSN: 1080-6059

Emerging Pathogen in Wild Amphibians and Frogs (Rana catesbeiana) Farmed for International Trade

Rolando Mazzoni*, Andrew A. Cunningham†

, Peter Daszak‡, Ada Apolo*, Eugenio Perdomo*, and Gustavo Speranza*

Author affiliations: *Instituto de Investigaciones Pesqueras, Montevideo, Uruguay; †Institute of Zoology, London, UK; ‡Consortium for Conservation Medicine, Palisades, New York, USA

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Figure

a and b, histopathologic findings from infected frogs. Characteristic sporangia (s) containing zoospores (z) are visible in the epidermis (asterisk, superficial epidermis; arrow, septum within an empty sporangium; bars, 10 μm. c, Skin smear from infected frog, stained with 1:1 cotton blue and 10% aqueous potassium hydroxide (aq KOH) (D, developing stages of Batrachochytrium dendrobatidis; arrow, septum within a sporangium; bar, 10 μm. d, Electron micrograph of an empty sporangium showing diagnos

Figure. a and b, histopathologic findings from infected frogs. Characteristic sporangia (s) containing zoospores (z) are visible in the epidermis (asterisk, superficial epidermis; arrow, septum within an empty sporangium; bars, 10 μm. c, Skin smear from infected frog, stained with 1:1 cotton blue and 10% aqueous potassium hydroxide (aq KOH) (D, developing stages of Batrachochytrium dendrobatidis; arrow, septum within a sporangium; bar, 10 μm. d, Electron micrograph of an empty sporangium showing diagnostic septum (arrow) (bar, 2 μm).

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