Volume 9, Number 8, August 2003

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

Rolando Mazzoni,* Andrew A. Cunningham,† Peter Daszak,‡ Ada Apolo,* Eugenio Perdomo,* and Gustavo Speranza*
*Instituto de Investigaciones Pesqueras, Montevideo, Uruguay; †Institute of Zoology, London, UK; and ‡Consortium for Conservation Medicine, Palisades, New York, USA

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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This page last reviewed August 8, 2003

Emerging Infectious Diseases Journal
National Center for Infectious Diseases
Centers for Disease Control and Prevention